

Introduction
Koyama Dosen is an R-rank character in Echocalypse: Scarlet Covenant. Koyama Dosen's class is Tank. Faction: Eastrise.
On the Echocalypse: Scarlet Covenant tier list Koyama Dosen is D tier, 114th of the 124 characters ranked.
Profile
The lady was abandoned by her parents as a child and given a name by her adoptive mother. Despite the difficulties she faces in life, she stubbornly survives independently.
Koyama Dosen's birthday is November 3, and Koyama Dosen stands 138 cm tall.
Stories
3Case File I
Dosen doesn't even know why she was orphaned. Her parents told her to ''wait for us here'', so Dosen obediently stayed where she was and waited for them to come back.
However, no matter how long she waited, her parents never returned. Did they abandon her for any special reason? Or were they involved in some dispute and couldn't come back? Dosen, who never got an answer, was left alone in this strange town.
The one who took in Dosen is a woman who claimed to be an Onmyoji. The woman raised Dosen and taught her all Onmyoji skills. Dosen is grateful to the woman from the bottom of her heart. As Dosen grew up, however, she started to vaguely realize the woman was not a real Onmyoji, but a trickster for money.
Case File II
In fact, Dosen discovered the truth long ago: Her foster mother is a charlatan.
But Dosen believed that at least her foster mother's love for her is definitely real, so she happily spent every day with her foster mother.
Unfortunately, lies will be uncovered one day. Her foster mother was arrested on charges of cheating money under the guise of an Onmyoji. The high walls of the prison separated them.
Dosen understands that her foster mother is not a good person, but she never doubted about her foster mother's love for her. For the same reason, Dosen continues to dress up as an Onmyoji.
Case File III
I'm very sorry. I have no money to buy your rice ball.''
Seeing the rice ball handed out by Dosen, the poor man said. Dosen is a merchant. Since she's a merchant, she won't offer anything to others for free. The poor man in front of her is dying. Even if he is given a rice ball, he will only live a little longer.
''Give me the money for the rice ball after you're out of the ruck.'' After finishing speaking the words, Dosen put the rice ball into the man's hand.
Maybe this man will die today. Or maybe one day he will return to repay my favor? Dosen hopes that he can survive.
Just as the foster mother who took in Dosen expected her to have a bright future, Dosen would also like to try to look forward to the promising future of others. Her foster mother taught her the means and ways of survival as a merchant, and the investment principle of following ''what your heart desires''. Dosen always remembers this lesson.
Stats
- HP165th of 172132,192
- Attack165th of 1726,937
- Armor165th of 1723,468
- Resistance165th of 1723,468
Level 200 at 7 stars, before advancement, awakening and gear. Each bar is measured against the highest value in the Echocalypse: Scarlet Covenant roster, and the place is out of every character with that stat.
Stats by star
The level curve at each star. Advancement, awakening, gear, Neoliths and the Vibration Arm add on top.
Level 200
- 0★HP: 31,008Attack: 1,632Armor: 816Resistance: 816
- 1★HP: 37,944Attack: 1,840Armor: 820Resistance: 820
- 2★HP: 46,920Attack: 2,449Armor: 1,224Resistance: 1,224
- 3★HP: 57,528Attack: 2,860Armor: 1,430Resistance: 1,430
- 4★HP: 70,992Attack: 3,674Armor: 1,837Resistance: 1,837
- 5★HP: 87,312Attack: 4,491Armor: 2,245Resistance: 2,245
- 6★HP: 107,304Attack: 5,511Armor: 2,656Resistance: 2,656
- 7★HP: 132,192Attack: 6,937Armor: 3,468Resistance: 3,468
Level 1
- 0★HP: 760Attack: 40Armor: 20Resistance: 20
- 1★HP: 930Attack: 49Armor: 24Resistance: 24
- 2★HP: 1,150Attack: 61Armor: 30Resistance: 30
- 3★HP: 1,410Attack: 74Armor: 37Resistance: 37
- 4★HP: 1,740Attack: 92Armor: 46Resistance: 46
- 5★HP: 2,140Attack: 113Armor: 56Resistance: 56
- 6★HP: 2,630Attack: 138Armor: 69Resistance: 69
- 7★HP: 3,240Attack: 171Armor: 85Resistance: 85
Case
Skills

Spin!
Normal attackStarsDeal 109% Physical DMG to a single enemy.

Spin, spin, spin!
Active skillStarsDeal 213% Physical DMG to a single row of enemies.
Advancement passives
3Unlocked and upgraded as the Case reaches each advancement tier.
Heavy EquipmentT2At the start of the battle, gain a shield of 10% of Max HP.
Heavy EquipmentT4At the start of the battle, gain a shield of 15% of Max HP.
Heavy EquipmentT6At the start of the battle, gain a shield of 20% of Max HP.
Star talents
7- 1★Talent: CriticalEffect: Crit +10%
- 2★Talent: PrecisionEffect: Hit +10%
- 3★Talent: RestraintEffect: Crit Strength +15%
- 4★Talent: See ThroughEffect: Pierce +15%
- 5★Talent: CriticalEffect: Crit +20%
- 6★Talent: RestraintEffect: Crit Strength +20%
- 7★Talent: ToughnessEffect: Block Reduction +25%
Advancement talents
20- T1Talent: Attack Instinct 1Effect: Initial Rage +1, ATK +80
- T2Talent: Survival Instinct 2Effect: HP +2,700
- T3Talent: Defensive Instinct 3Effect: Armor +90, RES +90
- T4Talent: Attack Instinct 4Effect: ATK +260
- T5Talent: Survival Field 5Effect: Ally HP +3,370
- T6Talent: Defensive Instinct 6Effect: Armor +520, RES +520
- T7Talent: Attack Field 7Effect: Ally ATK +450
- T8Talent: Survival Instinct 8Effect: HP +34,200
- T9Talent: Defensive Field 9Effect: Ally Defense +330
- T10Talent: Attack Instinct 10Effect: Attack +2,130
- T11Talent: Survival Field 11Effect: Ally HP +15,740
- T12Talent: Attack Instinct 12Effect: Attack +2,830
- T13Talent: Survival Field 13Effect: Ally HP +24,640
- T14Talent: Attack Instinct 14Effect: ATK +3,990
- T15Talent: Defensive Field 15Effect: Ally DEF +710
- T16Talent: Survival Instinct 16Effect: HP +101,500
- T17Talent: Attack Field 17Effect: Ally ATK +1,910
- T18Talent: Defensive Instinct 18Effect: Armor +3,030, RES +3,030
- T19Talent: Survival Field 19Effect: Ally HP +42,040
- T20Talent: Attack Instinct 20Effect: ATK +7,230
Exclusive Vibration Arm

Koyama Dosen demands that her customers spin along with her artifact when casting a spell. However, Koyama Dosen's magic often fails, causing the customer's wallet to vanish.
Unstoppable!:
Bonds
2- Buy and SellerWhen deployed with Cayenne, Koyama Dosen's Armor is increased by 8%. (with Cayenne)
- RegularsWhen deployed with Xen, Koyama Dosen's Attack is increased by 10%. (with Xen)
Synergies
1- Fire Beacon
Faced with Raeon's emerging ambitions, a part of the top officials of Eastrise, who oppose the imperial system, joined hands with civilian leaders to form the Watchtower, vowing to stop Raeon from restoring the imperial rule.
Members: Taisei, Yanling, Koyama Dosen
Codex bonus
Every account gets these bonuses as Koyama Dosen's codex entry levels up with the Case's stars.
- Lv. 0Needs: 0★Bonus: HP +40, Attack +3, Armor +1, Resistance +1
- Lv. 1Needs: 1★Bonus: HP +90, Attack +6, Armor +2, Resistance +2
- Lv. 2Needs: 2★Bonus: HP +180, Attack +11, Armor +4, Resistance +4
- Lv. 3Needs: 3★Bonus: HP +270, Attack +16, Armor +6, Resistance +6
- Lv. 4Needs: 4★Bonus: HP +360, Attack +21, Armor +8, Resistance +8
- Lv. 5Needs: 5★Bonus: HP +550, Attack +31, Armor +13, Resistance +13
- Lv. 6Needs: 6★Bonus: HP +740, Attack +41, Armor +18, Resistance +18
- Lv. 7Needs: 7★Bonus: HP +1,020, Attack +56, Armor +25, Resistance +25
Upgrade costs
Star-up
- 0★ to 1★Koyama Dosen Bio-Chip ×30
- 1★ to 2★Koyama Dosen Bio-Chip ×60
- 2★ to 3★Koyama Dosen Bio-Chip ×120
- 3★ to 4★Koyama Dosen Bio-Chip ×180
- 4★ to 5★Koyama Dosen Bio-Chip ×240
- 5★ to 6★Koyama Dosen Bio-Chip ×360
- 6★ to 7★Koyama Dosen Bio-Chip ×480
How to get Koyama Dosen
Koyama Dosen's exclusive Vibration Arm is Dragonfly.
Art
















