Lion

Zero escapees!!
A girl bares her fangs in a hell where despair echoes!!
A rare storyteller and a talented artist team up! A new heroine is born here!!

Zero escapees!!
G.P. (Gargantua Pocket) is a prison in the depths of despair where serious criminals from all over the world are sent!
In this hell from which neither the living nor the dead can escape, one girl bares her fangs, staking human dignity on it!! Her name is...?? Lion!!