City of Sin (Yanyu Jiangnan) - Vol 9 Chapter 82

“Why? Just why?”“Why did I became this guy?” That was the first thing I said when I see myself on the mirrors reflection.Lucien Drelmont.A bottom-tier instructor at Noctis Ardentis Academy. A joke of a character. A corrupt, talentless noble despised by both students and faculty.He was one of the early game villain, that was destined to die, a stepping stone for the protagonist, a scapegoat for the Academy, no matter what way the game is played his death was destined.And now I need to survive as him, in this hellish academy._____________________[No Harem][No Romance][No NTR&Yuri]

A continuation from where High School DxD Volume 25 left off.

Throughout this current life of mine, I will pay no attention to my past lives, nor will I seek future lives. I wish to live vigorously, to pay back debt of gratitude and fulfill duty to avenge, to defeat valiant heroes from all species, and to proudly laugh at all the Gods and Demons of the Six Path of Reincarnation!

- Description from Novelupdates

Chen An traveled to the world of cultivating immortals, and his cultivation talent was extremely poor. He was stuck in the third level of Qi refining for many years and could not make further progress.

Seeing that there is no hope of cultivating immortality, he chooses to return to ordinary life, and marries a wife to enjoy the ordinary happiness.

As a result, on the night of their marriage, they returned to the fairyland overnight.

It turned out that marrying a wife and enjoying ordinary pleasures was his way to become a fairy, and it could directly save him thousands of years of detours.

- Description from novelbuddy