Other Title: 3回ノックは抱かれる合図 ; 3次敲门就是被上的暗号 ; 3번의 노크는 안기는 신호 ; 3-Kai Nokku wa Dakareru Aizu

Author: Furuhi

Summary: Sakamoto is a fresh recruit employed at a company where first year employees must live in the company dormitory. His roommate is Shimasa, a guy with good looks who everyone has high expectations of. However, it would seem Shimasa also has a dark side to him. One day, he finds out that Sakamoto has a very sensitive body... and uses that to blackmail him into a sexual relationship. Three Knocks ...

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