From Koyukiya:

Second year university student Suga has been living with his childhood friend, Hara, for half a year. They're good friends who can tell each other everything, except Suga has just one secret. That is-- his feelings for Hara, which are more than just friendship. One night, after finding Hara's jacket and getting turned on by the scent, he gets caught by Hara. With a "Aren't you going to continue?", Hara reaches for Suga, and...?!