finding a yaoi manga

i remember this yaoi manga where the mc meets his sisters boyfriend and gains a small crush on him. he gets closer to him and then one day the boyfriend disappears and the sister freaks out because she got scammed by him. the mc tries to find him but then he finds this club where he almost gets raped by these rich guys but the sisters ex finds him and stops it from happening. the ex gets arrested and then a few years later the ex gets out and the mc is waiting for him. i think it’s still ongoing? please help me find this!!