Wolf of the Blood Moon: A Blood Magic - Chapter 22Book 5: : Mutation

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

Three hundred years since the founding of the Great Jin Dynasty, the fortune of the country has been prosperous. In the imperial court, there are great Confucianists who make their promises.

Zuo Daoqi traveled to this world and became a little eunuch who was about to be thrown into the cold palace.

The court was treacherous, and the rivers and rivers were vicious. He just wanted to live on honestly.

But accidentally opened the script of life, can see through other people’s future scripts, and can get rewards after completing tasks.

The first thing that caught my eye was a little loli who was about to become an empress…

From then on, Zuo Daoqi planned to stay in the cold palace, study the game script well, and train the future empress by the way.

In my spare time, I’ll talk to the queen mother, imperial concubine, princess and so on.

His original purpose was to protect himself, so that he could leave the palace as soon as possible and become a rich man.

…

Until one day, a little eunuch came to Zuo Daoqi’s side,

“Nine thousand years old, the empress dowager said it’s time to serve her tonight.”

- Description from novelbuddy

“….Krische-sama, are you not afraid of killing people?”

“……? No. After all, it doesn’t hurt Krische.”

Although gifted with the talent to do anything with ease, the girl lacked empathy.

In her world, there is only loss and profit. No goodwill, no love.

Inhumanly recognizing cold, mathematical logic as everything, she looks at everything in the world through calculating lens.

Return given profit with profit, loss with loss.

The girl was undoubtedly pure, yet undeniably abnormal—

Her favorite things are cooking, food, and being pampered.

Her specialty is mu*der.

—- This is the story of a slightly unhinged girl being surrounded by kind and loving people, and her journey to find happiness.