Bleach: Watch Closely, This Is How You Use a Zanpakutō - Chapter 1: Aozaki-oyabun

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

I fell in love. Her name was Shirasaka Yukino. I could only look at her from a distance. However one day I heard that she already had a boyfriend. Even if I love her, I can’t have her. The devil sent me an invitation. I can make her mine!

He always told me that he dreamed of me at night.

“I really feel like having one of those special macarons from the cafeteria today. You think you could get me one?”I sit diagonally behind the heroine in class. I’m basically her errand girl.“We are [friends] , after all.”…And I’m happy to do it.