
Guard
Sideroca
★★★★★
Minos
Introduction
Sideroca is a 5-star character in Arknights. Sideroca's weapon type is Sword and class is Guard. Faction: Minos.
On the combined Arknights tier list Sideroca is C tier, 284th of the 410 characters ranked, from where 3 community tier lists put Sideroca.
What Sideroca does
A self-sustaining
Guard: Regeneration heals 70% of Max HP at once, and
Restorative Surge adds 110% ATK with 8% Max HP regen per second at the cost of range. After five kills the talent adds 15 ASPD and Status Resistance.
Profile
Sideroca is a female Forte. Her birthday is Mar 17, and she stands 164cm tall. Sideroca is voiced by Jinni in Chinese, Mariah Tzoumbas in English, Yuuki Kuwahara in Japanese, and Kim Soo-yeong in Korean. 将 drew her.
Stories
9Basic Info
[Code Name] Sideroca
[Gender] Female
[Combat Experience] 5 Years
[Place of Birth] Minos
[Date of Birth] Mar 17
[Race] Forte
[Height] 164cm
[Infection Status]
Medical tests have confirmed that no infection is present.
Physical Exam
[Physical Strength] Excellent
[Mobility] Standard
[Physical Resilience] Excellent
[Tactical Acumen] Standard
[Combat Skill] Excellent
[Originium Arts Assimilation] Normal
Profile
Sideroca is an experienced mercenary from Minos and specializes in bodyguard and cargo transport duties. A long-term employment contract with Rhodes Island has been signed, and after internal training, Sideroca has the strength and experience to participate in a variety of missions.
Clinical Analysis
Imaging tests reveal clear, normal outlines of internal organs, and no abnormal shadows have been detected. Originium granules have not been detected in the circulatory system and there is no sign of infection. At this time, this operator is believed to be uninfected.
[Cell-Originium Assimilation] 0%
Is this what an uninfected Minosian Forte's horns feel like? So smooth...
[Blood Originium-Crystal Density] 0.12u/L
Compared to Forte standards, all indicators are excellent.
'How great it is to be young.' —Unnamed senior physician
Archive File 1
Sideroca was born in Corinia, a city-state of Minos renowned for its flourishing trade and business, but simultaneously criticized for rampant corruption. Due to the bitter consequences of wealth inequality and classism from a young age, Sideroca left Corinia to wander the various Minosian city-states as a mercenary. In the past, she always wanted to go far away from Corinia to see different facets of life, but after some time as a mercenary, she realized she would never be able to flee from Corinia, the heart of Minosian trade as well as her splendid motherland. However, her struggle was not fruitless - in her line of work, she came across two other nomadic city-states that rivaled her home: Athenus, the spiritual garden of Minos, and Lakedaímōn, the sacred ground of warriors. In these places, she was able to encounter different philosophies as well as different ways of life, and at the same time, it was in these places that the vast world beyond Minos was revealed to her. One day, she will leave her home and travel to a new country. If Corinia taught anything to Sideroca, it is perhaps a lifelong desire for exploration and a deep pragmatism.
Archive File 2
Sideroca originally chose to become a mercenary as a method to cover daily expenses, and to leave Corinia as soon as possible. Many people have voiced doubts about whether such a young woman would be qualified for that line of work, but Sideroca's first employer, the president of the Minos branch of Rhodes Island, did not share those concerns. As long as the task can be successfully completed, she cared not for the experience, or lack thereof, of the person carrying out the task. By the time Sideroca officially joined Rhodes Island, she had an impressive track record of zero tasks failed, even completing tasks that allowed the mercenaries to abandon their goods in order to ensure their own safety. Of course, her accomplishments also came at a price, perhaps evident by the extra scars across her body. After several years of cooperation, the head of Rhodes Island's Minos branch decided to grandfather her into the main organization - after all, she didn't want this trusty talent to be snatched up by competitors. As such, Sideroca officially became an operator of Rhodes Island.
Archive File 3
During her time as a mercenary in Minos, Sideroca received two different kinds of evaluations. One group of employers called her 'responsible and dedicated to every task.' The other group called her 'nosy, with the very troublesome tendency of asking too many questions.' The reason for these two different types of evaluations is actually quite simple: Sideroca habitually wants to go above and beyond for her employer. While this is beneficial to completing the task, it can also be unsuitable for employers who wish to conceal information from their mercenary hires. The head of Rhodes Island's Minos branch once gave her the following advice: 'Only take on short-term contracts, or stick with one employer until retirement.' She understands that Sideroca's cold personality cannot conceal her inner dedication and work ethic. By working under the right employer, it is possible to achieve twice the outcome with half the effort, but once... because of this very reason, when she learned that the Minos Foreign Trade Union was attempting to strike a long-term deal with Sideroca, she went directly to Sideroca to snag her up before she could sign that contract. When representatives from the Trade Union arrived at Sideroca's temporary residence, she had already left Minos to start a new life at Rhodes Island. However, there was one thing that even the savvy branch leader could not anticipate...
If Sideroca really stayed under the same employer for too long...
Archive File 4
'Recently, the Doctor's been taken good care of.'
'The Doctor? Taken care of? I don't know of anyone doing something like that. Unless you're talking about the medical department. It wouldn't make sense if they weren't keeping people healthy.'
'That's not what I'm talking about! C'mon, take a look at this photo from our daily newsletter. Look carefully at the Doctor's arm.'
'What about it...?'
'Wait, I think I see it.'
'The Doctor's putting on some muscle?!'
'Even though it's just a little bit, that is unmistakably muscle!'
'By jove!'
'So, umm, I want to know who's taking care of the Doctor.'
'Isn't it enough to just take a look at the Doctor's record of duties at the office? You're the only one with that authorization here, so I'm counting on you.'
'Good point, let me take a look.'
Fast Forward→
'Did you find it?'
'It's Sideroca.'
'Side-who? That mercenary? Do they train mercenaries for caregiving duties these days?'
'She's probably an exception... I heard that she learned to cook in order to persuade the Doctor to work out. All it took was her borrowing a Leithanian cookbook from the library.'
'How good could something that came off a cookbook be?'
'You've never tried it, have you? The other day, Gummy and I went to try one of her simple meals. Gummy was blown away.'
'What?!'
'That woman's a monster, I'm telling you. I've been cooking for ten years, and even my own mother won't touch my food...'
'I heard that she selects her ingredients in accordance to nutritional theory while accounting for individual tastes. The Doctor, who swore to never set foot in the gym, was seen there the next day after trying one of her meals.'
'So that's where that 'Doctor at the Gym' post came from...'
'Mhm...'
'This person... is she really just a mercenary?'
'Beats me.'
——Cafeteria monitoring camera, unknown time
Promotion Record
Perhaps because she had never received prior formal training, Sideroca still clearly remembers her experiences training to become an Operator. At the time, Instructor Dobermann also has very 'vivid' memories of Sideroca. She says that while it is normal for people to proactively improve themselves during Hell Week, it is inexplicable that someone would ever want to put themselves through Hell Week ever again. In her eyes, Sideroca is the kind of person who can incorporate a brutal regimen like Hell Week as part of their own regular fitness routine, even with already excellent qualities. Because Sideroca kept signing up again and again, Dobermann put her foot down and no longer allowed Sideroca to take the same courses as fresh recruits - after all, that would only serve to intimidate them. Consequently, Dobermann put together a specialized regimen, delving into new training manuals, standard army training, and special operations training and incorporating them to meet Sideroca's needs. She even made an agreement with Dur-nar afterwards, gaining her support in exchange for compromises in some other areas, in order to work together against this person who constantly made the life of the instructors that much harder. Eventually, they discovered that only two things could tear Sideroca away from this almost self-destructive urge to train - going out on missions, or diverting her attention onto the Doctor. Thus, after they deliberately 'leaked' some information about the Doctor's recent malady, Sideroca poured all her energy and enthusiasm into taking care of the Doctor. Even with all of that, however, the reserve operators frequently see Sideroca laboring away on the training grounds.
Stats
- HP78th of 4552,845
- ATK198th of 455620
- DEF112th of 455369
- RES87th of 45215
- Block1
- DP cost339th of 44623
- Redeploy380th of 45580s
- Attack interval159th of 4551.25s
At Elite 2, level 80, before trust, potentials and modules. Each bar is measured against the highest value in the Arknights roster, and the place is out of every character with that stat, lowest first for DP cost, Redeploy and Attack interval.
By promotion
- Elite 0 Lv. 1HP: 1297ATK: 266DEF: 166RES: 10Block: 1DP: 21Redeploy: 80Interval: 1.25
- Elite 0 Lv. 50HP: 1707ATK: 386DEF: 238RES: 10Block: 1DP: 21Redeploy: 80Interval: 1.25
- Elite 1 Lv. 70HP: 2162ATK: 502DEF: 306RES: 10Block: 1DP: 23Redeploy: 80Interval: 1.25
- Elite 2 Lv. 80HP: 2845ATK: 620DEF: 369RES: 15Block: 1DP: 23Redeploy: 80Interval: 1.25
Base values before trust, potentials and modules. Full trust adds HP +500.
Trait
- Deals Arts damage
Skills
2
Regeneration γ
Manual trigger · Auto recovery · Unlocks at Elite 0LevelRestores HP by 70% of Max HP
- SP cost
- 20
- Initial SP
- 12

Restorative Surge
Manual trigger · Auto recovery · Unlocks at Elite 1LevelAttack Range decreases, ATK +110%, restores 8% Max HP each second
- SP cost
- 30
- Initial SP
- 10
- Duration
- 30s
Talents
1Mercenary's Tenacity
- Elite 2
- After defeating 7 enemies, Sideroca gains +15 ASPD and status resistance
- Elite 2 · Potential 5
- After defeating 5 (-2) enemies, Sideroca gains +15 ASPD and status resistance
Potentials
- Potential 2
- DP Cost -1
- Potential 3
- Redeployment Time -10 sec
- Potential 4
- DP Cost -1
- Potential 5
- Improves Talent
- Potential 6
- DP Cost -1
Modules
1
Ballast For Wanderlust (AFT-Y)
Unlocks at Elite 2 Lv. 50StageStatsTraitTalent- Stage 1Stats: HP +200, ATK +25Trait: Enemies blocked by this unit receive 10% Arts Fragility
- Stage 2Stats: HP +270, ATK +30Trait: Enemies blocked by this unit receive 10% Arts FragilityTalent: After defeating 6 enemies, gains +20 ASPD and status resistance
- Stage 3Stats: HP +320, ATK +40Trait: Enemies blocked by this unit receive 10% Arts FragilityTalent: After defeating 5 enemies, gains +23 ASPD and status resistance
To unlock
- Defeat a total of 30 enemies with your own Sideroca
- Clear Dossoles Holiday DH-3 with a 3-star rating; You must deploy your own Sideroca, and have her defeat at least 7 enemies
Module record
'Thou shalt love Corinia.' Thus reads the inscription that crowns the stone pillar marking the city's gate. Its carver must have pictured that all those departing the city would read it the moment they lifted their heads. Now, though, stallkeeps and mercenaries throng the gate as tightly as packed fins, and those who look up will see nothing but smoke-stained graffiti and billboards. These used to be Sideroca's stomping grounds as a child, she'd watch aging mercs grumble as they waited to find employers, snippets of their words helping her piece together a map in her head, the map she'd use for her escape plan one day.
It's been years since then. She's returned, here beneath this gate once more. The branch director who'd referred Sideroca to Rhodes Island is here with her now, touring the old haunt together and talking about old times. The director confesses that back then, more than anything, she'd rushed to sign up Sideroca because she didn't want to let a talent like her go anywhere else. Sideroca had that little something extra compared to your average drifter. Real recognizes real, so to speak.
A freight boat needs a ballast to sail, and the wandering mercs and merchants of this citadel need something spiritual to weigh down their legs, lest they be trapped behind the mountains. Sideroca was barely an adult when she found her legs, firmer ones than any merc drowning their life away in booze. So what did keep her so rock-steady?
She doesn't have an answer right away. She scrutinizes Corinia once more, this city built on the idea of an eye for an eye. She can't stand the place in all its dark, bloodied glory. It sickens her how the books you learn to read from here teach you all the different names of money. She despises how children play pretend by copying the way grown-ups haggle and bargain and use each other for their own gain. To her, Corinia is one giant example of what things shouldn't be. With every step, she's reminding herself: don't end up like this. Don't end up like the merchants who peddle fakes beneath the gate, or the mercs who cry ripoff and smash their stalls up.
A crude rock can be carved into pillar decorations or boat ballasts. Yet, if you price it as a jewel and cling to it, you'll waste all your energy and sink to the river's bottom with it. The further Sideroca travels from her homeland, the more clearly she understands this and many other things.
She has no interest in entering the city itself. Just as she's about to go, the branch director asks if she's ever seen how that inscription has a second half:
'For thy countless paths begin from here.'
Base skills
2
Guard Expert α
Training Room · Elite 0When this Operator is assigned to be the Trainer in the Training Room, Guard Operators' Specialization training speed +30%

Whole-Heartedness
Training Room · Elite 2When this Operator is assigned to be the Trainer in the Training Room, Guard Operators' Specialization training speed +30%; if training this skill to Specialization Level 3, training speed will be further increased by +45%
Outfits
3
Elite 1
Default Outfit
Art by 将

Elite 2
Default Outfit
Art by 将

Light Breeze LB03
Coral Coast/VI
Art by 将
Store
Voice lines
38Show all 38 lines
- Appointed as Assistant
- There are no security risks in your room, and you can work with peace of mind. I'll stand guard at the door to help you turn down any unnecessary busywork.
- Talk 1
- The automatic door here is broken? Let me have a look. Hm… Haaaaah! Alright, Doctor, you're clear to go ahead and carry on with your work. I'll contact the maintenance staff.
- Talk 2
- You want to learn more about Minoan culture? I see, I'll put together a report for you. No, that's not information I can cover in just a few words. I must report it to you in detail.
- Talk 3
- Mercenaries must always update their pool of knowledge. If you can't keep up with the newest information, you could end up falling into the hands of enemies using the new methods, so there's absolutely no room to slack. I hope you understand this, Doctor. Doctor?
- Talk after Promotion 1
- What did that Minoan girl in the garden do...? My head feels strangely empty, it's like I'm completely relaxed… This doesn't... seem normal to me. Doctor, I need to rest. I'm sorry, I'm out of service as your bodyguard for the time being…
- Talk after Promotion 2
- Hoooooo, HAH! Looks like I'm in pretty good shape today, maybe it'll feel even better to exercise a bit with the reserve operators. Oh, it's Hell Week? Alright then, I'll have to bug Dobermann again and get her to find a place for me.
- Talk after Trust Increase 1
- Corinia was built on the scales of merchants. Everyone there wants to squeeze as much as they can out of everyone else. But, people in the other city-states are a lot more interesting. I had all kinds of fun back when I was guarding them. The feeling was a lot like what I get with you, Doctor.
- Talk after Trust Increase 2
- You need to train properly, Doctor. Not exactly, stretching and walks are light exercise. What I'm talking about is real training. It requires a full range of intense exercises, as well as a healthy diet to burn fat and build muscle. Oh, you're fine with that? Good, let me see your results then. Don't be like last time, Hey! I'm not done talking yet, get back here!
- Talk after Trust Increase 3
- Finished that one too? Want one more bowl? No problem. This is the first time I've made a complete meal. Usually I just fill my belly with some rations and don't cook much. Here's the last portion. When you're done, you'll exercise just like we agreed. That's the whole reason I learned to do this.
- Idle
- Relaxing with a nap? Hehehe, this is a real luxury.
- Onboard
- Hello, my new employer. I am Sideroca, a Corinian mercenary. My paperwork is all done. You can count on me.
- Watching Battle Record
- These clips are only good for reference. Keep your eyes open in a real battle.
- Promotion 1
- Each badge is a symbol of trust. I'll accept this.
- Promotion 2
- I'll use my sword to cut down all threats to you. You have my word.
- Added to Squad
- At your service.
- Appointed as Squad Leader
- I'll pass on your orders.
- Depart
- Don't worry, I'll keep an eye on the team.
- Begin Operation
- We're starting.
- Selecting Operator 1
- Here.
- Selecting Operator 2
- Approaching the destination.
- Deployment 1
- Let's see what you all can do.
- Deployment 2
- This is where you stop.
- In Battle 1
- Let's turn this around!
- In Battle 2
- And stay down!
- In Battle 3
- Hooaahh!
- In Battle 4
- I'll show you how a Minoan fights!
- 4-star Result
- Seeing how you command, I feel like my protection might be a little redundant.
- 3-star Result
- What matters is you're alright. Let's get ready to head back.
- Sub 3-star Result
- You had to suffer through that because I was careless. I'm so, so sorry.
- Operation Failure
- No matter what happens... I have to get the Doctor safely back to base…
- Assigned to Facility
- It's too messy here. I'm going to have to give it a good cleaning.
- Tap
- What's the matter?
- Trust Tap
- Doctor! This training was your idea! Why are you running off? Get back here!
- Title
- Arknights.
- New Year's blessing
- Doctor, Happy the New Year. We can put your workout regimen on hold for today, but you still have to do some basic exercise. Also, I may have prepared a meal for you, but that's not an excuse to sit here eating the whole time, are you listening to me, Doctor? Doctor?
- Greeting
- Nothing out of the ordinary!
- Birthday
- I had this sapling brought all the way from Minos to celebrate your birthday. Find somewhere to plant it. I hope the joy of growth and new life will reach you in your thoughts.
- Anniversary Celebration
- The more I see of you, the more you unsettle me. Instructors Dur-nar and Dobermann are sharp, no doubt. They're no mercenaries, but still show such attentiveness to their employer. Doctor, I have a few questions I'd like to ask you, in order to better complete the missions you assign me...
Upgrade costs
Open in the plannerPromotion
- Elite 1
Guard Chip ×4
Orirock Cube ×7
Device ×2
LMD ×20,000 - Elite 2
Guard Dualchip ×3
Polymerized Gel ×9
Oriron Cluster ×13
LMD ×120,000
Skill levels
- Lv. 2
Skill Summary - 1 ×4 - Lv. 3
Skill Summary - 1 ×4
Orirock ×10 - Lv. 4
Skill Summary - 2 ×6
Sugar ×3 - Lv. 5
Skill Summary - 2 ×6
Polyester ×5 - Lv. 6
Skill Summary - 2 ×6
Incandescent Alloy ×4 - Lv. 7
Skill Summary - 3 ×6
Loxic Kohl ×3
Aketon ×3
Mastery: Regeneration γ
- M1
Skill Summary - 3 ×5
Incandescent Alloy Block ×3
RMA70-12 ×3 - M2
Skill Summary - 3 ×6
Grindstone Pentahydrate ×3
White Horse Kohl ×6 - M3
Skill Summary - 3 ×10
Polymerization Preparation ×4
Polymerized Gel ×5
Mastery: Restorative Surge
- M1
Skill Summary - 3 ×5
Keton Colloid ×3
Coagulating Gel ×2 - M2
Skill Summary - 3 ×6
RMA70-24 ×3
Manganese Trihydrate ×5 - M3
Skill Summary - 3 ×10
Polymerization Preparation ×4
Incandescent Alloy Block ×4
Module: Ballast For Wanderlust (AFT-Y)
- Stage 1
Module Data Block ×2
Keton Colloid ×3
LMD ×40,000 - Stage 2
Module Data Block ×2
Data Supplement Stick ×20
Manganese Trihydrate ×4
LMD ×50,000 - Stage 3
Module Data Block ×2
Data Supplement Instrument ×8
Transmuted Salt Agglomerate ×5
LMD ×60,000
How to get Sideroca
Event Reward
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