BM0 Zankoku na Yoru ni Kanojo no Sakebi wa Dare ni mo Kikoenai.

Main character grows up in an orphanage in a mafia sub-district of Tokyo together with several girls. The orphanage gets burned down, and children get to live in a private family. However, family members die, and protagonist urgently needs money to pay for girl Rina's surgery. He agrees to take up a job of district black market's sweeper. He is in charge of disposal of "products" which is a code word for human traffic. His reality is colored with invisible desires and dead bodies.

[From vndbreview]