I am looking for an bl

Some time ago I read a manga bl about a noble that lost his title and became a slave. So what I remember about it is that when he was younger he was friend with a slave that he shoved away from himself and was mean to at one point. The slave grow to hate the noble and later on was announced a noble himself he took the male as his slave. Then they got to a ball which the fallen noble was forced to sleep with the emperor, the noble also joined it. Please help ╥﹏╥