Animal Tamer's Dominion - Chapter 4: Holy Servant.

She killed his wife, destroyed his reputation, and ran off with his son. 8 years later, she returned home with her genius son, who already had a fiancée. “Give me the child, or you can’t afford the price.”“A girl who eats meat and vegetables doesn’t suffer, if you want a child, find yourself a woman to give you one.”

One day, Zhang Fan, a poor medical student, receives a medical system from the future. This turns him into a new shining star in the medical field. Along the way, he must face medical corruption, competition, and infighting from other doctors, and even find time for a love life as he strives for the top of the medical field!

- Description from Novelupdates

The King of the Underworld returns, and due to a marriage contract, he comes back to the city to marry, only to meet his ice-cold wife. Surrounded by numerous admirers, including a former first love, a beautiful colleague, and a cute lolita... As skilled enemies attack, watch how the King of the Underworld responds.

“Spread your legs.”“Tsk.”A slave to the city's system, Lancel was quite literally a slave to a witch whose only love language was torture to him.After a year of humiliation in the Witch City of Riviere, he finally escapes captivity, only to discover something even more dangerous.A system that allows him to form contracts with witches… and lets him steal their magic.[Active Contract: Witch of Lust has reached Bond Level 10!][Contract Bonus: Aphrodisiac Haze!][Active Contract: Witch of Bondage has reached Bond Level 20!][Contract Bonus: Chains of Dominion!][Active Contract: Witch of Fluids has reached Bond Level 100!][Contract Bonus: Fountain of Yatagarasu!]The deeper his relationships with witches became, the stronger he grew.One bond at a time.One spell at a time.Until even the witches themselves began to wonder who was truly in control.“Take your pants off, Lancel.”…Which only left him with one question.Why did witches keep asking him to take off his pants?——————————————More illustrations in the server.Discord: https://discord.gg/zukKB2ppDp