Kokichi Muta

Mechamaru, the Kyoto student who fights through robot puppets.

Kokichi Muta is a Kyoto Jujutsu High student whose Heavenly Restriction gives him enormous Cursed Energy but a fragile body. With Puppet Manipulation he runs robot puppets called Ultimate Mechamaru, which he uses for everyday life and for combat.

Quick Facts

School: Kyoto Jujutsu High
Technique: Puppet Manipulation

Facts from the source article.

Background

At first he betrays his classmates and sides with Mahito in the hope of curing his body. He later turns on the curses and fights Mahito to a draw before he is killed. His puppets go on to help Yuji in the Shibuya Incident, making up for his earlier betrayal.