MTL - Yuan Tianzun - Chapter 273 Metamorphosis

Xiao Ze, who was dedicated to the people and vowed to become a generation of Ming Jun, accidentally fell on a little lady.
The little lady was born beautiful and lovable.
So Xiao Ze accepted his life and got the name of fear.

ps:
①The male protagonist has no concubine, and he is dedicated to serving the country.

- Description from novelbuddy

In a parallel world filled with pet beasts, people tame, train, evolve, and trade beasts.

Zhangsun Zijun and Yi Xichen are the protagonists of the novel “Record of Nine Thousand Vicissitudes.” One is solid and reserved; the other is free-spirited and uninhibited. As fellow disciples under the same master who grew up together, the two have a deep friendship that was strengthened by their numerous life and death adventures together.

However, in a popular yaoi fanfiction, the personalities of these two characters is completely OOC. Zhangsun Zijun turned into an insanely jealous, insatiable s*x addict madly in love with his wife Yi Xichen. Yi Xichen turned into a sweet, delicate little angel. Their daily life was full of kinky bedroom activities…

Suddenly, the Zhangsun Zijun character from the fanfiction was transported into the world of the original novel.

- Description from Novelupdates

He was aloof, reticent, and indifferent to women. Many girls expressed their liking for him, but he refused all with three sentences: “No way,” “No need,” “No possibility.”Except for one person—her.Since she moved in and lived with his family, he changed a lot. The used-to-be aloof guy not only helped her with her homework but also protected her all the time. He liked to tease her every day.“Be good. I'll let you kiss me.”“I will only answer your questions.”“One wrong letter, one kiss.”