Hiro Haraya
ハラヤヒロ
Used to go under the pen name Pa (ぱ), but changed it (to the current pen name) around the time when Hakase no Sekai started.
ハラヤヒロ
Used to go under the pen name Pa (ぱ), but changed it (to the current pen name) around the time when Hakase no Sekai started.
