Responses
It's chapter 2 of Hitomi No Giwaku
http://www.mangago.zone/r/l_manga/manga/hitomi_no_giwaku/mf/manga/hitomi_no_giwaku/v01/c002/5/
beta
Oh i read this yaoi before but dont remember the title, it was about a guy that was in love with his sister's husband he always wcomes to their house since his sis was away they had an affair and the husband told him a secret that the guy that they all thought was his cousin was actually his brother.