Evil_Peppa
If he join a peerage i hope he go with Sona more points to farm in it... Saji make some women from the peerage fall in love with him so for the mc that would be easy. He dont even need to force them after all they are devil close to their sin so its obvious they are lustful. By being with Sona and beating Rias peerage he could make Rias totaly interested in him 100%. After all she have pride and if she see her "rival" win against her that will make her salty and will make her want Yuki for herself hehe. Anyway i hope he become a devil after all being human will always limit him even with his cheat.