Sage Monarch (Sage Emperor) - Chapter 1576: Mass-Producing God Legion Seals?

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.

What are you going to do when you pass through another world?

Yalin(MC): Perhaps, many of those seniors who passed through another world would like to use violence to solve their problems, but I like to control the fate of a country with economics and races with faith, I use benefits to instigate others so that I profit, and even making them take risk for me without them even knowing. In each country the highest is the king and behind the king is a string that is attach to my hand, for I am their puppeteer.

Yalin(MC): Certainly the credit does not only belong to me, I must give my thanks to the great knights and their leader Zero(Code Geass). The supreme master of blood, the moon princess(Tsukihime), the black and white princess, and also my ‘good friend’ called by his title the ‘God’s left eye’, president of the neutral autonomous city. Finally I must give thanks to my loyal and competent subordinates!

- Description from Novelupdates

This is an alternate history. Decades after the fall of the Eastern Jin Dynasty, the world is still in chaos, although there is hope for reunification.

Urano, a bookworm who had finally found a job as a librarian at a university, was sadly killed shortly after graduating from college. She was reborn as the daughter of a soldier in a world where the literacy rate is low and books were scarce. No matter how much she wanted to read, there were no books around. What is a bookworm to do without any books? Make them, of course. Her goal is to become a librarian! So that she may once again live surrounded by books, she must start by making them herself.