Yūjin Ōzora

Yūjin Ōzora (大空 勇仁 Ōzora Yūjin) is childhood friend of protagonist, Haru Shinkai and his Buddy Appmon is Offmon.

It is revealed that Yujin is a robot working for Leviathan.

Appearance
Yuujin is a teenage boy with fair skin, spiky red hair, and green eyes. He wears a green shirt with yellow on the chest, white on the sleeves and three black lines on the shoulders, greenish grey shorts, dark green socks, and white and green sneakers wit dark green soles.