Starting as a Male Favorite in the Princess's Residence, I Unify the World

[Transmigration + No System + Political Schemes + Turning the Tables Against the Odds] After transmigrating to the State of Gen, Yang Qingfan becomes a male favorite in the Princess Royal’s residence, and a has-been, at that. “Yang Qingfan, are you any good or not?” A man must never say he can’t perform, and a male favorite must never say so either. The Princess Royal is as beautiful as an immortal, but in truth she’s a ruthless she-devil. If he dares say he can’t, he’ll be “put out of commission” the very next second. Yang Qingfan refuses to give up. Relying on his own wits, he navigates the shifting alliances until he finally wins a chance to survive. But the price is… the number of women around him seems to keep growing…