

Professor Shiro Sakaki, a butterfly researcher, confesses to turning six young boys, including his own son Itaru, into "human specimens."

Professor Shiro Sakaki

Itaru Sakaki

Rumi Ichinose

Anna Ichinose

Toru Shirase

Hikaru Akabane

Sho Ishioka

Ao Fukazawa

Dai Kuroiwa

Ichiro Sakaki


Kozue Sakaki

Shiro Sakaki (young)

Detective Narumi

Detective Katagiri

Sawako Ichinose

Kimihiko Ichinose

Rumi Ichinose (young)

Toru Shirase's grandmother

Mieko (Dai Kuroiwa's fan)

High school student

High school student






Toru Shirase's mother



Police officer at the local station

Shiro Sakaki's student


Man walking his dog




2004 • TV Show

2024 • TV Show

1975 • TV Show

2019 • TV Show

1989 • TV Show

2021 • TV Show

2025 • TV Show

1973 • TV Show

2019 • TV Show

2021 • TV Show