A Heir in a Chaotic Era, with a Great Sword Immortal for a Wife

[Alternate history, lighthearted comedy, slow-paced with no System, harem rivalry, sweet daily life] Yang You accidentally transmigrates into the heir of the Duke of Cheng in the Great Yun Dynasty. He is known as Qingcheng's number-one menace! Every day, he hangs around the pleasure houses and wine shops, spends money like water, and lives for an easygoing life of slacking off. Then the Empress secretly visits Qingcheng's poetry gathering, where the city's finest poets are asked to write poems about admiring the moon. Just as everyone is sure their poetry is unmatched... Yang You says, “A pot of wine among the flowers, I drink alone, with no one to share my company. I raise my head and invite the bright moon, I drink alone, with no one to share my company!” Every poet under heaven pales in comparison.