Pls help me find this manga/??? I was reading

It's a bl story about one the males is a hit man that work for his mafia family and the other one has different personality cause his trama with his family i think on of them name is bunny .......... the one with the did has a lot of brothers and he's the oldest and the father wants him to run the family ........
I whish I could explain it more better but the English is fucking me up ......it's used to be on tapas till the author stop uploading it and made a site just for it ....it was also on here bt now I can't find help me. also the top is black