Mitsuo Akechi

A massive figure hailing from Saitama, this Blazing Gas BIM user initially journeyed alongside companions like Himiko, Isamu Kondō, and Masashi Miyamoto. His mysterious history is shadowed by a traumatic school incident involving a girl, an event that led to widespread social isolation and potential exile to the island. Though he remains largely unaware of the true nature of that past encounter, the resulting stigma profoundly shaped his life and eventual arrival in the series.