First Class Servant is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.nl fastest updating comic site. The Summary is

Have you ever seen a servant who is more arrogant than noble? Have you seen a servant who is more arrogant than a monk? Have you seen a servant who is more domineering than an emperor? Have you ever seen a servant who hooked up with her own lady? Have you ever seen a servant who is in trouble with the alluring city? As a modern man, Xu Feng has always been intoxicated with wind and moon, and has become a dog and horse, but because of an accident, he has reborn into another world, and he has become a servant. Messing with Ms. Xiao’s family, ganging up with the rich ladies, scourge thousands. Achieve a generation of family!