i think it’s Kobi No Kyoujin (Yaoi) which is a bl with multiple books i believe there are 3 on this site also i will warn you there is a lot of grooming and rape incase ur not comfortable with that!
Omg really????
yeah it’s a yakuza story and the top grooms the bottom into being the only one he cares or even thinks about. and there’s a scene in i think the second book where he tortures him and let’s another man torture him sexually. it was a little hard for me to read.
do someone know this yaoi ??? the image that uke had choker on it?? http://www.mangago.zone/read-manga/sore_wa_tabun_itoshii_tte_koto/mf/c003/3/