Hajime, Jyugo, Uno, and Nico head to Building 5 to find out about Rock and Yamato.
Jyugo and the others fall into a trap and end up in level 1 underground cell.
There, they find the captured Upa and Liang.
Meanwhile, Hajime is captured by Inori and is escorted to the underground cell where Samon, covered in injuries, is restrained.
Samon reveals who’s behind the incident.
It is no other than Enki Gokuu, the former Building 5 supervisor who became a criminal causing havoc in Nanba Prison in the past. He is also Samon’s brother.
He was already imprisoned by 
the time we were sent here.
.كان قد سُجن بالفعل عندما نُقلنا إلى هنا
Als wir hier eintrafen,
saß er bereits ein.
Cuando nos transfirieron a esta prisión,
él ya había sido encarcelado.
Cuando nos transfirieron a esta prisión,
él ya había sido encarcelado.
Il était déjà enfermé à l’époque
où on nous a transférés ici.
Quando noi siamo stati trasferiti qui,
lui era già stato incarcerato.
Ele já estava preso 
quando chegamos aqui.
Когда нас перевели сюда,
он уже был схвачен и арестован.