Extra's Harem: Invincibility Starts with Marriage and lots of Children - Chapter 68 - A Passionate Night [R18]

Freshman student Yang Dingtian possesses the Nine Yang Body, found only 1 in million. His Yang Fire is incomparably vigorous and thus, he cannot be near a female’s charms for his entire life. On the night of his 19th birthday, he decided to bid farewell to his virgin life. After stealing and tasting the forbidden fruit, he spontaneously combusted as the result!

In death he crossed over to another world; a world that held respect for Martial Power. His, originally, catastrophic Nine Yang Body was the Nine Yang Body that couldn’t be seen in a millennium! He was saved by a mysterious old man when he was at his last moments and the old man received him for a disciple, then betrothed his daughter to him. Thus, in this odd way, Yang Dingtian became the successor of the largest clan under Heaven, and became the number-one-beauty-under-heaven’s fiance.

- Description from Novelupdates

It was only after Su Yayan's death that she realized that she was a malicious cannon fodder female character who became a scapegoat in a Mary Sue story.

You might not believe it when I say this, but not all top students are the same!-------------------------------No system, high intelligence, character-driven slice-of-life book!

Forty years ago, Gu Hai, transmigrated to a brand new world where the cultivation was no longer fiction but a reality. These are the tales of Gu Hai’s life since his arrival at the Chen Kingdom as he becomes the biggest merchant of six kingdoms.