Hiii !
For these last weeks I have been searching for a certain manga. It is about a university student who is in love with his best friend. But his friend is straight and has a girlfriend. He even asks the protagonist to lend him his flat so that he and his gf can have sex. The protagonist then meets his neighbour who is also a student from the same university and they end up having sex while the crush of the protagonist is just next door sleeping with his girlfriend.
Thaank you for your help <3
SEXY (๑•ㅂ•)و✧