Kakushitagari no Douki-kun

Karen Inuyama is an office worker who loves fine muscles. Her blissful moment is interrupted by her nagging coworker, Takuma Hosokawa. Today was our regular house-drinking party. The place was Hosokawa's house. A series of happenings lead her to discover an unexpected side of Hosokawa-kun. I can't believe he was hiding something like that! The battle against the cynical coworker is about to begin!