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 the level 1 underground cell. There, they find the captured Upa and Liang.

Jyugo, Uno, Nico, Liang, Upa, Honey, and Trois make their way through Building 5's underground cell to find the captured guards. They hide in the file room where Jyugo finds some shocking information about himself!

The escaped convict, Hachiman, appears in front of Liang and Upa. Meanwhile, Uno and Jyugo are concerned about Nico, who doesn't have his medication. It seems something horrible will happen to him if he doesn't take his medicine.