NANBAKA S01 E01 Idiots With Numbers!

Jyugo, Uno, Nico and Rock make an attempt to escape, only to get caught by Hajime Sugoroku. The group later spends some time bugging Hajime and indulging in idle chat. The Warden, Momoko Hyakushiki, returns and discusses Jyugo with Hajime, telling him not to underestimate him.