Takuya Numakawa (ぬまかわ たくや) is a worker under Ōtsuki in Squad E in the underground labor camps.

He has a spin-off manga called Ichinichi Koshitsuroku Numakawa were he is the main protagonist.


Tobaku Hakairoku Kaiji

He along with Isawa help Ōtsuki at managing Squad E. He also plays a vital part in Ōtsukis Underground Chinchiro for it to work properly.

Ichinichi Gaishutsuroku Hanchou

He plays a supporting role in the spinoff along with Isawa.

He is not used to going outside the underground labor camp for a day and struggles on how to enjoy his time outside.