Oji Hoshino is a third year high schooler who is an observer in the program. He was born November 1st, is 165 centimetres tall, weighs 113lbs and debuted in episode 2 of the anime. He has yandere-like traits, forming a strong connection to one of the main characters, Yuuri Amagake.
As Yuuri doesn't accept his love, he attempts to commit suicide, and during her attempt to save him she his pulled down with him - leading to her eventual death and entrance to the program.
