Koiso, Kenji

小磯健二

A mathematically gifted 17-year-old high school student who serves as a moderator of the interactive computer world OZ, alongside his close friend Takashi Sakuma. Kenji is less adept at handling interpersonal relationships. He is invited by his friend Natsuki Shinohara to Sakae Jinnouchi's 90th birthday celebration. After receiving a cryptic code on his cell phone and deciphering it, he becomes a primary suspect for hacking into OZ.