Under city (Sanegiyuu)

Sanemi is the chief of police. He was sent on a mission to find a murderer, however it all goes wrong.
He is now trapped in the under city, and the mercy of someone only referred to as the boss.
The people who captured him have no reason to let him go, and he must use all of his two brain cells to escape.

I don't own Kny or any of the characters.
Guys, I'm ashamed to say Sanemi has more brain cells then me.