just remember this scene.. he the uke met up his uncle, while the uncle has ulterior motive with him and the uke doen’t know it.. then his boyfriend come get his boyfriend and beat up his uncle .. anyways for new info his uncle is kind of yakuza ...
Help me find this... I want to read this manga again TT.TT

There's a scene at Honto Yajuu where uke meets his uncle.

I ain't sure since the uncle is also a yakuza here and has ulterior motives also to uke.