MTL - National School Prince Is A Girl - Chapter 15 Spades Z is not a teacher, is a student

A normal guy gets hit by a truck and isekai'd. Why? Because trucks are apparently some cosmic loophole. He decides to be a dungeon, because it sounds weird and interesting to be one. Is it? Let's find out.

Tian Shao wore it, and became the eldest of the six golden flowers of Tian Dalin’s family in the Hongqi Club in that difficult era.

In a family, the parents are dull and the mother is aggressive, the second sister is violent, the third sister is taciturn, the fourth sister is gluttonous, the fifth sister is brave, and the sixth sister is a cabbage.

Patriarchal? Don’t be afraid, a girl is better than a son. Familiar with nothing? Don’t be afraid, go to the factory to do business, and the small life is booming.

…

It is said that men chasing women, the mountains are separated; women chasing men, the gauze is separated. Tian Shao was puzzled why she and Pei Yue were separated by mountains.

Forget it, the iceberg is too high and cold.

Pei Yue stopped Tian Shao and said, “If you flirt, you have to be responsible. Let’s go to the Civil Affairs Bureau to get the certificate.”

- Description from novelbuddy

There are a total of seven sins, and a revelation is made to a young man named Alex that he is destined to become a demon lord, more especially a demon lord of sin called LUST.

It's not like he can change that and because he always knew something about himself was different—not in a physical sense, well, maybe a little—and not in a mental sense—but rather because he is thrown into a demonic war that compels him to accept his new reality.

He was only aware of a difference in himself. Relating to him and the ladies who are drawn to him... Well, it was more or less like he was a magnet in front of all the girls, and all the girls were drawn to him like a metal.

Reborn in the early 1980s, what Lin Xia wished to do was to be “idle” to the extreme, and so wealthy that it dripped off of her...Having another chance at life, all she wanted was for her brother to live a long life of a hundred years, her younger brother to attend university, and to set up a small business for her sister;Yet, why were two highly eligible men taking turns to express their feelings for her?