S1·E2 – Open It! The Door to a Hidden History!

Robert Baldwin

Robert

Ryouta Murai

Daijirou Kyougoku

Eimi Naruse

Anna Houdou

Koichi Ohori

Hachikurou Kyougoku

Kouji Tsujimoto

Sougen Mongorian

Oolongta Yoshida

Grandpa