Little Taoist Maiden Training Plan

My name is Cao Zhengyi. I'm twenty years old, and still a virgin.

I've never even been in a relationship.

Then one day, I ran into my past life, a little girl who hadn't even hit puberty, and my extraordinary journey began.

"Marry me, Cao Zhengyi."

"I refuse!"

(The first part is everyday life, the later part is fighting.)