Kyoukai Senjou no Horizon - Volume 7A, Chapter 24: Battlefield Picnicker

In the vast and boundless continent Cangtu, there were ancient sects governing the Ten Old Domains, unworldly immortal clans beyond the Blue Sky, and primordial demon gods dominating the dark abyss that together created a great number of brilliant stories over the long course of the history.

One is the gentle and handsome zombie father who has raised her for thousands of years, and the other is the cold and awkward Professor Tianshi who always lectures her. I hate it, why are you digging by Uncle Mei? Jiang Xiaosi bared his teeth, I’ll choose whose blood tastes better… The story of a bouncing little zombie in the Tuoguxiang sex toy store.

- Description from novelbuddy

On the first day Yuna became a class teacher, she became well-known in school because of her looks. On the second day of becoming a class teacher, a student secretly took photos of her with his phone and was called to the principal’s office with his Guardian. The person who showed up turned out to be Yuna’s university crush, Xiao Chen.

To Yuna’s surprise, Xiao Chen was the elder brother of the very student whose class she manages. She also realized that this rebellious student causes trouble two or three days out of every week, indirectly giving them many chances to meet.

…

When they reunite again, Yuna is puzzled. Wasn’t Xiao Chen a poor young master in the past? How come he’s now driving luxury cars and living in mansions?

Xiao Chen is also puzzled. Wasn’t Yuna a rich daddy’s girl in the past? How come she’s now dressing plainly and squeezing onto public transport??

…

In the eyes of her students, Yuna is very beautiful but has always been diligent and thrifty, with little interest in money.

However, one day a Rolls Royce showed up outside school, waiting. Upon seeing Yuna, the chauffeur respectfully opened the door for her, “Miss Yuna, please get in.”

From that day forth, her true identity set off huge discussions in school.

“Where the f*ck am I?”

One day, he suddenly fell into a world of barbarism and superstition.

“F*ck, I ain’t a savage!”