| Role | Attack |
|---|---|
| Illustration | Yusa |
| Voice | Daisuke Hirakawa |
| Affliation office | Non Partisan |
| Occupation | 用心棒 |
Gaisei’s people are blessed with metal-hard bones, and the blade Parallel Weapons extending from his forearms are made even stronger by his genetic stock. His steel-cutting blades and bone-shaped armor all come from his body’s inborn abilities, which is why his hero suit is particularly revealing and designed not to obstruct his movements. It also serves to send the message to his foes that his body and skill are greater than theirs.
前腕部から伸びるブレード型のパラレルウェポンは、身体の骨が金属のように硬い、ガイセイの種族的特徴が更に強化されたものである。金属をも切り裂く硬質なブレード、そして身を護る骨格型のアーマーは全てがガイセイの肉体に由来するものである。そのためヒーロースーツは動きを阻害しないよう開放的なデザインとなっており、自らの肉体で、技で相手を上回り、その圧倒的な力を示すというガイセイの決意を表している。
所使用的刀刃型平行武装由前臂延伸而出，是盖世的种族特有的金属般坚硬骨骼进一步强化而成。可切割金属的坚硬刀刃，以及保护身体的骨骼型装甲，全都源自盖世自身的肉体。因此盖世的英雄战斗服采用了不妨碍动作的开放式设计，展现出他以自身肉体和技艺胜过对手、彰显压倒性力量的意志。
從前腕延伸出來的刀刃型平行武裝，是強化了蓋世的種族特徵──那硬如金屬的骨骼所造出來的產物。能夠斬斷金屬的高硬度刀刃、以及守護身體的骨架型鎧甲，全都源自蓋世本人的肉體。因此，他的英雄戰鬥服採用了不妨礙動作的開放式設計，展現出蓋世以自身肉體與技術壓倒對手、並以壓倒性的力量證明自我這一決心。
Having grown up in an orphanage on a backwater planet wracked with brutal inequality, Gaisei has seen the strong plunder the weak all of his life. Even the orphanage director who had taught him martial arts and protected the children with all he had had been destroyed by a greater force. Taking these lessons to heart, after being rescued and brought to Earth, he ran off to journey throughout the stars, seeking only battlefields where he could face off against the strong. These are his beliefs and this is his compulsion. Strength determines all, and he must be the strongest.
貧富の差の激しい辺境惑星の孤児院で育ったガイセイは、幼少期より強い者が弱い者から全てを奪うさまを見続けてきた。彼に武術の教えを授け、子供たちを守ってくれる存在であった孤児院の院長ですら、より強大な力に蹂躙された。その事実を胸に育ったガイセイは、その後に保護された地球を飛び出し、ただ強い者と相対する戦場を求めて銀河を駆け回っている。強さの優劣こそが全てを決定づける、という己の価値観を実感するために。
盖世在贫富差距极大的边境星球的孤儿院中长大，从小目睹强者从弱者手中夺走一切。即便是教导他武术、保护了孩子们的孤儿院院长，最终也被更强的力量所蹂躏了。铭记这段事实的盖世，离开了事后收容他的地球，为了寻找能面对强者的战场，在银河中四处奔走。这是为了切身体会强弱才能决定一切，这一自身的价值观。
在貧富差距懸殊的邊境行星的孤兒院長大，蓋世自幼便目睹強者從弱者手中奪走一切的殘酷現實。甚至連那位曾教導他武術、並守護孩子們的孤兒院院長，也終究被更強大的力量所蹂躪。蓋世懷抱著這份記憶成長，最終離開了後來保護他的地球，為了追求能與強者對峙的戰場而在銀河中奔走。只為了親身感受自己那「力量的強弱決定一切」的價值觀。
Stats
| Rarity | Level | HP | ATK | SPD | View |
|---|---|---|---|---|---|
| 5 ☆ | 1 | 416 | 187 | 107 | 945 |
| 5 ☆ | 30 | 2082 | 938 | 107 | 1040 |
| 5 ☆ | 40 | 3123 | 1408 | 107 | 1086 |
| 5 ☆ | 50 | 4510 | 2032 | 107 | 1182 |
| 6 ☆ | 50 | 5254 | 2032 | 107 | 1182 |
| 6 ☆ | 60 | 7276 | 2816 | 107 | 1323 |
Skills
Scar and 
Obsession. [If self has
[When receiving damage from an enemy] counter with Skill1.
[When receiving damage from an ally] activate Skill1 against a single random enemy.
No View gain from skills activated due to this effect (up to a total of 4 times per turn).
Scar, Obsession, Ruin Ruin
Deals 140%-280% damage to single enemy, damage increases as HP goes from MAX to 0.
Apply 1 charge of Scar and Obsession.
Scar, Obsession [If the target has a debuff] damage dealt increases to 105%.
After the skill activation, triggers Reaper's Blade against all enemies with
Reaper's Blade
SPD Up to single enemy for 1 action. Grants
Metered Provocation to self for 1 action. SPD Up, つのぶえ攻撃対象マーカー, Metered Provocation, Ruin [If the target has a debuff] damage dealt increases to 105%.
After the skill activation, triggers Reaper's Blade against all enemies with
Reaper's Blade
A bodyguard to a pawn broker-cum-used goods salesman with a past, Gaisei is a Cosman youth with a strong resemblance to a Terran. Seeing meaning in nothing other than tempering his abilities and defeating the strong, he will leave his shop of employ in the blink of an eye to seek combat on the battlefield if worthy opponents are to be found. While he wears a cruel smile in combat, slashing his way through the field with perverse joy, he brings no such energy to life outside of battle. When not fighting or training, he can often be seen staring off into space.
いわくつきの質屋兼古物商の用心棒で、地球人に近い外見を持った宇宙人の青年。ただ己の技を高め、強者に勝つことのみに喜びを見出しており、強者とのバトルが期待できるのであれば、雇い主不問の用心棒として、店を飛び出しあらゆる戦場へと赴く。バトルとなれば酷薄な笑みを浮かべながら嬉々として戦場を駆ける反面、バトル以外への興味は薄く、バトルや鍛錬の時以外は、ただぼんやりとしていることも多い。
为颇有来历的典当行兼古董商担任保镖，外表近似地球人的宇宙人青年。专注于磨练自身的技艺，把打败强者当作唯一的乐趣。只要有机会与强者交战，便会作为不挑雇主的保镖，离开店铺奔赴各处战场。一旦进入战斗，便会露出冷峻的笑容，兴奋地投入战场。而对战斗以外的事情毫不在意，除了战斗和修行时，基本只是在默默发呆。
有故事的當舖兼中古商的保鏢，是外貌與地球人相似的外星青年。他只追求提升自身的技藝，並將打敗強者視為唯一的喜悅。只要有希望與強者交手，不論僱主身分為何，他都會作為傭兵，離開店鋪奔赴任何戰場。一旦進入戰鬥，他便會露出冷酷的笑容興奮地穿梭於戰場。相對地，他對戰鬥以外的事幾乎毫無興趣。除了戰鬥與鍛鍊之外，大多時候只會茫然發呆。
Stats
| Level | HP | ATK | SPD | View |
|---|---|---|---|---|
| 1 | 70 | 26 | 4 | 40 |
| 50 | 280 | 104 | 4 | 100 |
| 60 | 350 | 130 | 4 | 120 |
| 70 | 420 | 156 | 4 | 140 |
| 80 | 490 | 182 | 4 | 160 |
| 90 | 595 | 221 | 4 | 180 |
| 100 | 700 | 260 | 4 | 200 |
Skills
Active
Scar Scar Scar Passive
Voice Lines (gaisei)
| Hero gachaResult | Please call this unworthy one Gaisei. |
|---|---|
| Sidekick gachaResult | I am Gaisei, the unworthy one—perhaps you could call me your bodyguard. |
| APPRECIATION | If I may be so bold as to express my humble opinion, I can see fatigue on your face. |
| DAILY | As for how to spend a day off… I have none. |
| EVENTA | An art gallery? A masquerade? What are those? |
| EVENTB | A militia, is it? I am fascinated to see how powerful they are. |
| EVENTC | Corsages? No interest, I’m afraid. |
| EVENTD | Operator, I have taken care of all the corsages. |
| HERO | Yohack says that even if one is not strong, they can still be of help to others, but… it’s hard for someone as insignificant as I am to understand that. |
| PLAYER | Though I wield my blade in my own way, you demonstrate command even with techniques that have no form… it’s truly intriguing. |
| RELATION | I asked Nessen about the secret to strength, and he replied it’s because there’s a town he must protect. |
| TOUCH | I have no interest in frivolity, I will take my leave now… |
| TRAIN | There’s no need for any compromise at all. |
| TRAINED | T-This is true strength…! |
Character Story Appearances
We only list the appearances if the character played a significant role in the story.
| Events |
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