Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 16 - 16-20. Sania Kingdom

The protagonist travels through Shu Mountain and becomes a demonic dragon guarding the heavenly book in Dinghu Peak.

Zhangsun Zijun and Yi Xichen are the protagonists of the novel “Record of Nine Thousand Vicissitudes.” One is solid and reserved; the other is free-spirited and uninhibited. As fellow disciples under the same master who grew up together, the two have a deep friendship that was strengthened by their numerous life and death adventures together.

However, in a popular yaoi fanfiction, the personalities of these two characters is completely OOC. Zhangsun Zijun turned into an insanely jealous, insatiable s*x addict madly in love with his wife Yi Xichen. Yi Xichen turned into a sweet, delicate little angel. Their daily life was full of kinky bedroom activities…

Suddenly, the Zhangsun Zijun character from the fanfiction was transported into the world of the original novel.

- Description from Novelupdates

Ren Xingliu transmigrated into a world in troubled times, struggled for half of his lifetime, and eventually achieved success and recognition, working as a good general and minister. Then he returned to modern times, when he was just about to graduate from university.Ren Xingliu who had his fill of wind and frost: I’m beat. Simplicity is the way to go.—Ren Xingliu, the ignorant, incompetent, reckless and daring young master of the Ren Family, was about to graduate. Everyone was waiting to watch him turn the Ren Family completely on its head. One with malicious intentions even deliberately introduced him to an honest person without status or background, Bai Juanqiu.Never did he expect Ren Xingliu to be so content with this honest person.Ren Xingliu: He seemed to be someone who could live a carefree life with. Alright, let’s make do with this.Bai Juanqiu had been putting on his honest persona for twenty years, but those people still wouldn’t let him live in peace and went ahead and introduced him to a notorious silk pants. Bai Juanqiu decided to stop pretending.Afterward…Bai Juanqiu: Well, let me just eat my delicious words, because I can keep pretending for two more years.

As a useless spoiled wild child, Bai YiHan finally brought about the end of his family, chased away the one he loved and caused his own death. After rebirth, he decides to cleanse himself and work hard at being a good child. But a lot of things don’t seem to be as he expected…

Bai Pa + Bai Ma: My son’s so obedient. Someone must be bullying him. This cannot be forgiven!

Bai Big Bro + Bai Big Sis: If my little brother’s sensibility comes from his suffering, then I’d rather he be a spoiled brat forever!

Mu JingYuan: If HanHan hits you, you must accept it. Yet you dodged…The wind’s changing. Someone should be bankrupt to make HanHan smile.

Bai YiHan: …I was so wild in my past life. Your involvement are undeniable!

This story is speculative, speculative, speculative. Important matters must be said thrice. Everything is about speculative time-traveling.

- Description from Novelupdates