Casts
Yuko Sanpei
as Butt Detective (voice)
Ayaka Saito
as (voice)
Takahiro Sakurai
as (voice)
Kenji Sugimura
as (voice)
Tetsuhiro Ikeda
as (voice)
Katsuyuki Konishi
as (voice)
Makoto Nakamura
as (voice)
Ikkei Watanabe
as (voice)
Riisa Naka
as (voice)
Kenjiro Tsuda
as (voice)
