
Guard
Luo Xiaohei
★★★★
Yan
Introduction
Luo Xiaohei is a 4-star character in Arknights. Luo Xiaohei's class is Guard. Faction: Yan.
On the combined Arknights tier list Luo Xiaohei is C tier, 326th of the 410 characters ranked, from where 2 community tier lists put Luo Xiaohei.
What Luo Xiaohei does
A
Guard who never lands the killing blow himself. Lethal hits leave enemies at 1 HP and Critically Wounded, and whoever finishes them gets 2 SP. His second skill adds 70% ATK, an extra target and a bonus hit that ignores 200 DEF on enemies below half HP.
Profile
Luo Xiaohei is a male Feline. Luo Xiaohei's birthday is Nov 1. Luo Xiaohei is voiced by Shanxin in Chinese and Kana Hanazawa & Shanxin in Japanese. 九日九号 drew him.
Stories
9Basic Info
[Code Name] Xiaohei
[Gender] Male
[Combat Experience] Undisclosed
[Place of Birth] Undisclosed
[Date of Birth] Nov 1
[Race] Feline
[Height] Undisclosed
[Infection Status]
Medical tests have confirmed that no infection is present.
Physical Exam
[Physical Strength] Excellent
[Mobility] Excellent
[Physical Resilience] Standard
[Tactical Acumen] Standard
[Combat Skill] Excellent
[Originium Arts Assimilation] ■■
Profile
Luo Xiaohei, a small feline friend recommended by Lee. Kind, but not weak. Brave, yet not reckless. After some tests, he formally joined Rhodes Island as a guard operator.
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%
Xiaohei shows no sign of Originium infection.
[Blood Originium-Crystal Density] Undisclosed
The Medical Department has agreed not to disclose the relevant data.
Archive File 1
Though Xiaohei is still young, he possesses combat prowess far beyond his age. He came to Rhodes Island accompanied by his friends Xiaobai and Ah Gen, along with a rare creature named Biu. When the three first arrived, they were unwilling to fully disclose their experiences due to their wariness of strangers and the new environment. However, by piecing together the clues that they invariably let slip, it can be determined that Xiaohei and his friend Ah Gen have an extremely special ability to cast Arts without the use of Originium, and this ability—that they call 'Spirit Ability'—has never been recorded in any official Terran records. This attracted many curious operators to attempt to learn it as well, but without exception they all failed to do so.
It appears that Xiaohei's Spirit Ability can not only alter the physical properties of metals and freely manipulate them at high speeds, he can also track enemies based on the position of metallic objects and cause interference by vibrating metal pieces to create noise. Besides this, he also has an astonishing long-range teleportation ability, which lets him quickly change his and other operators' location in a short amount of time. Whether it be casting range or strength, Xiaohei's abilities are truly remarkable, but he is still young and has yet to receive any systemic education. It can be said that he has a great amount of untapped potential.
Archive File 2
Xiaohei will only reveal his childish side in front of close friends. When in public, he usually behaves in a reticent manner. His cute outer appearance has drawn many people to him with the intention of making friends. Though the stony face he puts on when interacting with others has deterred many people, it's not a sign of his rejection, but merely his attempt at showing off a reliable side of himself. Most of the time, that little bundle of black leaping onto your shoulder is enough to tell you that he's already begun to accept you as a partner. If you find yourself with a conspicuous lack of little black bundles, please try to recall if you have recently rubbed his ears without permission.
Xiaohei spends most of his time together with his friends Xiaobai and Ah Gen. Unlike the quiet Xiaohei, the lively Xiaobai and talkative Ah Gen are much easier to approach, and befriending them may increase Xiaohei's affection towards you. Besides that, sparring with him in the Training Room is a surefire way to get closer, especially if you bring along some tasty snacks and share them with him.
Archive File 3
Xiaohei will occasionally mention his master, Wuxian. When talking about Wuxian, his tone is always filled with respect and pride. It's clear from the way he speaks of him that Wuxian's every word and action has greatly influenced the ignorant Xiaohei, and that his greatest dream is to become an enforcer of the mysterious 'Hall for Spirits' just like his master Wuxian. It's difficult to imagine the amount of effort and hard work Xiaohei has put in towards his goal. However, after meeting Xiaobai and Ah Gen, he has put a lot more thought into the things he wants to do, wishing to study and play with his friends, or travel to faraway places and meet many new people. Regarding these dreams, we are willing to provide as much assistance as possible to support his growth into the person he wishes to become.
Note
Though Xiaohei has performed well in missions, not faltering even when facing powerful enemies, we are reluctant to allow him to participate in combat. As he becomes more experienced in battle and more proficient in his skills, we find our unease only growing. He is at the age when children are most receptive to knowledge, and no matter what, we do not wish for his classes to take place on the battlefield.
Archive File 4
In the process of teaching Xiaohei, I have come to realize that even if he lacks knowledge regarding Originium and Oripathy, when discussing the discriminated Infected and Catastrophe-struck refugees, he will always sincerely sympathize with their pain and suffering. However, these emotions do not appear to stem solely from his kind nature. At least part of it seems to be because they strongly resonate with some of his past experiences.
After consulting with my superior, I have come to an agreement with the other instructors not to investigate his past, nor to intentionally carry out a psychological intervention. On assessment, we believe that his current state is ideal. When faced with both the good and bad intentions of strangers, he is always able to face them calmly and respond in a positive manner. Moreover, when interacting with his companions, the responsibility he displays and the sense of justice he espouses astonish us all.
——Excerpt from 'Operator Training Diary'
Promotion Record
'Beast Steward?'
'...Doctor, that's actually not my Beast Steward.' Xiaohei says as he wrings his shirt nervously.
'Um, I trust you, Doctor, so it's okay to tell you.'
'Actually, that cat... That's me.'
An unbelievable thing happens right in front of you. Xiaohei's body shrinks until it finally turns into a small black cat sitting on the floor in front of you, its big round eyes staring right into yours.
'Meow!'
Though you had many questions for him, you were not able to ask a single one, as the way he gently rubs against your ankles makes you want to do nothing but pet his furry little head.
Stats
- HP174th of 4552,040
- ATK134th of 455698
- DEF159th of 455325
- RES132nd of 45210
- Block60th of 4472
- DP cost178th of 44617
- Redeploy70s
- Attack interval168th of 4551.3s
At Elite 2, level 70, 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: 856ATK: 287DEF: 154RES: 5Block: 2DP: 15Redeploy: 70Interval: 1.3
- Elite 0 Lv. 45HP: 1224ATK: 423DEF: 212RES: 5Block: 2DP: 15Redeploy: 70Interval: 1.3
- Elite 1 Lv. 60HP: 1611ATK: 565DEF: 269RES: 10Block: 2DP: 17Redeploy: 70Interval: 1.3
- Elite 2 Lv. 70HP: 2040ATK: 698DEF: 325RES: 10Block: 2DP: 17Redeploy: 70Interval: 1.3
Base values before trust, potentials and modules. Full trust adds ATK +30, DEF +25.
Trait
- Can launch Ranged Attacks that deal 80% of normal ATK
Skills
2
Tail Afterimage
Manual trigger · Auto recovery · Unlocks at Elite 0LevelCan switch between initial state and the following state: Attack range becomes 4 adjacent tiles, ASPD +40, gains 45% Physical Dodge, and attacks all blocked enemies
- SP cost
- 10
- Initial SP
- 0

Broken Blade
Manual trigger · Auto recovery · Unlocks at Elite 1LevelATK +70%, ranged attacks no longer reduce ATK, target 1 more enemy, and add an additional attack that ignores 200 enemy DEF when target HP is below 50%
- SP cost
- 35
- Initial SP
- 15
- Duration
- 20s
Talents
1Executor-in-Training
- Elite 0
- When dealing lethal damage, leave the enemy with 1 HP and inflict Critically Wounded (gives +1 SP to the attacker when killed); Luo Xiaohei will not attack Critically Wounded targets
- Elite 2
- When dealing lethal damage, leave the enemy with 1 HP and inflict Critically Wounded (gives +2 SP to the attacker when killed); Luo Xiaohei will not attack Critically Wounded targets
Modules
1
Ball of Yarn (LOR-Y)
Unlocks at Elite 2 Lv. 40StageStatsTraitTalent- Stage 1Stats: HP +65, ATK +25, DEF +15Trait: ASPD +12 when there are 2 or more enemies in attack range.
- Stage 2Stats: HP +83, ATK +35, DEF +20Trait: ASPD +12 when there are 2 or more enemies in attack range.Talent: Increases damage dealt to enemies below half HP by 8%; when dealing lethal damage, leaves the enemy with 1 HP and inflicts Critically Wounded (gives +2 SP to the attacker when killed); Luo Xiaohei will not attack Critically Wounded targets.
- Stage 3Stats: HP +100, ATK +40, DEF +25Trait: ASPD +12 when there are 2 or more enemies in attack range.Talent: Increases damage dealt to enemies below half HP by 12%; when dealing lethal damage, leaves the enemy with 1 HP and inflicts Critically Wounded (gives +2 SP to the attacker when killed); Luo Xiaohei will not attack Critically Wounded targets.
To unlock
- Complete a total of 5 battles; You must deploy your own Luo Xiaohei, and unleash Broken Blade at least once in each battle
- Clear Invitation to Wine IW-4 with a 3-star rating; You must deploy your own Luo Xiaohei, and can only include 6 other Operators in your squad
Module record
[Medical Department Log Excerpts]
Today is examination day for our underage operators. Though the children are bound to misbehave, these chatty brats seem cute and well-behaved compared to the troublemakers who came by for their physicals yesterday. Most Infected children have already started to stabilize, with many of them who had lost their mobility gradually recovering.
As for the non-Infected children, excessive weight gain has been observed in some of them, which we've assessed to be reasonable, given the fact that many of them suffered from malnutrition while growing up in harsh environments, and proper nutritious intake at Rhodes Island is likely to result in rapid weight gain.
However, Operator Luo Xiaohei's weight gain is somewhat peculiar. First, his diet falls within a reasonable range. His companions, Ah Gen and Xiaobai, have told us that they have never seen him overeat. Second, he gets plenty of exercise: in addition to his regular operations, he also makes a habit of exercising.
Based on the above two points, we believe that his weight gain requires further observation to rule out any potential pathological factors that may lead to further problems. We recommend scheduling tests starting next week to identify what these factors might be.
[Excerpts from a Medical Department Operator's Private Logs]
I'm so tired after a long day of work. My neck and back are aching. I just want to go back to the dorm and crash.
My goodness, when will I be free from dealing with all these uncooperative patients? And then there's the brats who won't stop running around...
When I first graduated, I was filled with a sense of duty. Now, I just feel dead inside.
I ran into that black cat again on my way to Medical this morning. It often shows up there, and a lot of my colleagues have seen it. I suppose it enjoys lying there, basking in the sun. Some of the folks who pass by try to play with it, but it basically ignores everyone unless they offer food. Then, it might show some interest.
Despite its cold demeanor, everyone seems quite enthusiastic about it, and it's even become the topic of conversation.
Of course, I'm no exception.
Just watching it engrossed in eating canned food is enough to briefly make me forget the torment of work.
I always bring some spare snacks and was planning on bringing some more freeze-dried food tomorrow until I saw this morning that everyone in Medical had brought snacks and cat food. After touching bases, we realized that we'd all been separately feeding it over the last few months.
No wonder it has put on so much weight... Maybe I should bring some balls of yarn instead tomorrow.
Base skills
2
Spiritshaping: Metal
Workshop · Elite 0When this Operator is assigned to the Workshop to process any material with a base Morale cost of 8, byproduct production chance is increased by 50%

Catform
Workshop · Elite 1When this Operator is assigned to the Workshop to process any material, any recipes with Morale cost of 4 or higher have their Morale cost divided by 4
Outfits
2
Elite 1
Default Outfit
Art by 九日九号

Elite 2
Default Outfit
Art by 九日九号
Voice lines
38Show all 38 lines
- Appointed as Assistant
- This table's really high! I guess it's easier if I just use my old form to jump up.
- Talk 1
- What are you doing here? There's these Medic Operators who keep chasing my tail all the time saying they wanna study me! I need to lay low! Still, why are you hiding here too? You're not slacking off, right, Doctor?
- Talk 2
- My power is controlling metal, stuff like the thing on your table. I can make it turn pointy, round, or flat, and even more complicated shapes too.
- Talk 3
- The people here look a lot like the spirits in our world. So maybe, the spirits in this world look like you do, Doctor?
- Talk after Promotion 1
- This place is a lot like the Hall for Spirits to me, with all the Infected staying here because they have nowhere to go. But... the Infected have it really different from spirits. They can't even escape just by staying far away from everyone.
- Talk after Promotion 2
- There's so many Catastrophes here... Is this why your cities have to keep wandering everywhere all the time?
- Talk after Trust Increase 1
- I get it! Operators are Executors, aren't they? Executors do errands for the Hall for Spirits, and Operators do errands for Rhodes Island! Huh? No?
- Talk after Trust Increase 2
- I'll be an Executor someday, just like my master. My master's really mighty! Um... you too. Everyone on this battleship listens to you, so you've got to be somebody incredible.
- Talk after Trust Increase 3
- Doctor, are we friends now? Then if you can, you should visit our side to play sometime!
- Idle
- Doctor, are you eating something secret there?
- Onboard
- Hello, Doctor, my name's Xiaohei, and I'm a spirit.
- Watching Battle Record
- Doctor... if I don't understand these tapes, can I ask you about them?
- Promotion 1
- Promotion? What does that mean?
- Promotion 2
- I still don't really get it, but thanks, Doctor.
- Added to Squad
- Doctor, I'm here! Huh? Is there something on my face? Ah, I just finished eating, haha.
- Appointed as Squad Leader
- I'm gonna be the captain? Can I handle that...?
- Depart
- Doctor, grab onto me, I'll use my power to send us there. It's quicker that way.
- Begin Operation
- Are... all of them bad guys?
- Selecting Operator 1
- Heixiu, we have to help the Doctor out.
- Selecting Operator 2
- Uh-huh, Doctor, I'm here, don't worry.
- Deployment 1
- I'm actually pretty good at assassinating.
- Deployment 2
- I won't let you hurt them!
- In Battle 1
- Don't come near.
- In Battle 2
- If you get any closer, I'll get mean!
- In Battle 3
- I'm super strong! I'll show you how mighty I am!
- In Battle 4
- Sshaaa!
- 4-star Result
- Is everyone okay? I'm so, so glad!
- 3-star Result
- There's just mighty people everywhere.
- Sub 3-star Result
- Phew, lucky. You're still fine, right?
- Operation Failure
- It's all my fault for being so weak, Doctor...
- Assigned to Facility
- I can't forget about the mission the Doctor gave me. But this mat's so comfortable, and the sun's so warm. I think I'm getting kinda sleepy...
- Tap
- Doctor, don't mess with my ears!
- Trust Tap
- What are you still working for, Doctor? It's almost food time!
- Title
- Arknights.
- New Year's blessing
- Happy New Year, Doctor. This is for you. It's lou mei from Ah Gen, since he wanted to thank everyone for treating us so well the past year.
- Greeting
- Hello, Doctor!
- Birthday
- So it's your birthday, Doctor! No wonder there's so many people aboard. Sorry, I didn't get a present ready in time for this, um... you can have this scroll from the Hall for Spirits, and if you're ever in danger, it'll save your life!
- Anniversary Celebration
- Doctor, I... I'm really going to treasure all the time we've spent together. And if I ever go back one day, I'll never forget you.
Upgrade costs
Open in the plannerPromotion
- Elite 1
Guard Chip ×3
Oriron ×1
Orirock Cube ×1
LMD ×15,000 - Elite 2
Guard Chip Pack ×5
Manganese Ore ×15
Oriron Cluster ×9
LMD ×60,000
Skill levels
- Lv. 2
Skill Summary - 1 ×2 - Lv. 3
Skill Summary - 1 ×2
Ester ×4 - Lv. 4
Skill Summary - 2 ×3
Oriron ×2 - Lv. 5
Skill Summary - 2 ×3
Polyketon ×2 - Lv. 6
Skill Summary - 2 ×3
Orirock Cluster ×3 - Lv. 7
Skill Summary - 3 ×4
Coagulating Gel ×2
Mastery: Tail Afterimage
- M1
Skill Summary - 3 ×2
Polymerized Gel ×1
Orirock Cluster ×6 - M2
Skill Summary - 3 ×4
RMA70-24 ×2
Manganese Trihydrate ×2 - M3
Skill Summary - 3 ×6
D32 Steel ×2
Polymerized Gel ×2
Mastery: Broken Blade
- M1
Skill Summary - 3 ×2
Incandescent Alloy Block ×1
Compound Cutting Fluid ×3 - M2
Skill Summary - 3 ×4
Crystalline Circuit ×2
Polymerized Gel ×2 - M3
Skill Summary - 3 ×6
Crystalline Electronic Unit ×2
Orirock Concentration ×2
Module: Ball of Yarn (LOR-Y)
- Stage 1
Module Data Block ×1
Integrated Device ×4
LMD ×20,000 - Stage 2
Module Data Block ×1
Data Supplement Stick ×15
Oriron Cluster ×5
LMD ×25,000 - Stage 3
Module Data Block ×1
Data Supplement Instrument ×5
Orirock Cluster ×6
LMD ×30,000
How to get Luo Xiaohei
Event Reward
Art
















