Wataru Chijimatsu

Wataru Chijimatsu (千々松 渉 Chijimatsu Wataru) is an apparent student at Hope's Peak Academy and is a participant of the Terror Factory killing game.

His title is the Ultimate Cryptojacker (超高校級の「暗号通貨ハッカー」, chō kōkō kyū no "angō tsūka hakkā" lit. Super High School Level Cryptocurrency Hacker).