Nezumi ネズミ

A fugitive who is on the run from the police after escaping from prison. He sneaks into Shion's house after being shot. Nezumi gets treated and sheltered by him for a night, then disappears without a trace in the morning. He hates No.6 and appears to know something about the city that no one seems to know.

Nezumi is a rude and straightforward person. He has a deep hatred towards No. 6. Though deemed a criminal in the beginning, he seems to be an honorable person.