Seisei Doudou de Saikyou no SSS-kyuu Assassin
正々堂々で最強のSSS級暗殺者（アサシン）
Assassins are supposed to move without sound, wait in darkness, kill cleanly from some unseen corner, and disappear leaving nothing behind. Yu Zhun does the opposite, announcing himself at full volume in the manner of a chuunibyou: he gives his name and states outright that he has come to kill. Then it takes one blow, every time. His SSS-rank assassin talent is considered the most worthless there is, yet he turns it into the strongest.