Introduction
Hatsuhiko is chearful but insensitive, sometime makes troubles.
Hatsuhiko was born in a village of Eevee, and Yajin is his childhood friend. He calls Yajin his "better half", but Yajin only sees him a friend. He sleeps at even and wakes up in early moring, means he has an opposite habit to Yajin.
Yajin enjoys physical contacts of balloons. He also likes to see someone infates big. He is not afraid of popping.