MTL - The Girl Who Cured the Crazy BOSS is Majestic and Mighty - Chapter 5 . Male pet

Tian Long, an orphan without much of a life in both his thirty year long life and lifespan!
To him, a single opportunity was displayed to transmigrate into another world with his Death Book!
"What's this? Is this the body of a three year old? Davis? Is this my name from now on?"
Finding himself possessing a small child, he becomes inwardly conflicted before he faces the truth and his reality!
Young Davis finds himself as the legal heir, the Crown Prince of the Loret Empire in the Grand Sea Continent, becoming a powerful cultivator in a short time...
However, is that all?
Follow his journey as Young Davis becomes a full fledged death's advocate while embodying into the Divine Emperor of Death in the world of cultivation!
"Mn? The route to become the Emperor is a given? Nah, I still don't want it..."
"Oh? I'm courting death you say? Unfortunately for you, death is already my woman..."

The story is centred around a cute android who initially had a happy life with her master who dearly loved her. But she was then struck by a series of misfortunes and ended up in a robot-equivalent of concentration camp. Through experiencing and witnessing the sufferings towards herself as well as the people/robots around her, she eventually gained a better appreciation of life.

She has stunning looks and talents that are even more amazing, but she hides both deeply because she understands that beauty is never a blessing. One who is beautiful can only bring trouble, especially within such a society where evil runs amok. In addition, one who is too crafty is disliked.

So to the common eye, she is an ugly woman, so ugly even ghosts would be too afraid to look at her, a weak, ignorant lady.

An imperial edict forces her to marry the well-renowned prime minister of Dong Ling. She cleverly deals with her situation as she faces hidden and openly disdainful looks, smiling coldly and looking on indifferently. She did not want any of this. Why do women make things harder for other women?

She is the ugly, cowardly, useless, frail Lady Zi Yinye. But she is actually the handsome and brilliant prime minister Ye Yin!!

- Description from Novelupdates

10 years searching for his lost sibling.