Netsubyou

Feverish 1) Singles Sen is the son of the caretaker of the building where Hashiba lives. Sen started to seduce Hashiba, and even though he didn't give a proper answer, he never rejected Sen's services.

2) Persons Sen and Hashiba started to live together now but they haven't slept together yet....

Feather Hands chapters 3-5 + Extra

(from B-U)