Toaru Majutsu no Index: New Testament - Volume 14, Chapter 1: Imagine Breaker and World Rejecter — One_Night_Encount.

The hero who was killed by the demon king ended up reincarnated as the son of the one who killed him! Thus began the life of the hero who donned in the mask of the ideal demon prince to topple his own kingdom while doing his best to prevent anyone from discovering his identity―― But to do that and blend into the demon tribe society, he had to kill his former comrades. Nevertheless, to become stronger, to save humanity, he had to walk through all kinds of paths of carnage! This is the tale of the demon race’s fake prince destroying his own kingdom.

O Hero, Trample Those Who You Should Protect!

TN: Most part of the other character in the novel is depicted from a non-human perspective so expect something that is completely different from the common sense of human.

[Fiction from the 1980s] Su Wen read a popular novel about son-in-law in the 1980s. The hero is a tough guy with a sense of security, but at the same time he is a bit dark-bellied and sullen.

It was the style she liked, so with a wave of her hand, she rewarded one million reading coins—and then she became the hero’s scumbag ex-wife.

In the book, the original body, as the head of the family who recruits a family at home, does not want to stand up for the family, but is a love brain. Don’t want to have huge golden thighs, but was instigated by the little white flower heroine, and fell in love with the scumbag from the next village.

After Su Wen came through, she hugged the male lead’s golden thigh tightly, and worked hard to make money and become rich. As a result, the younger sisters were too competitive, crying and shouting to recruit a son-in-law at home like the older sister, and they gave birth to a baby with the surname Su.

So, Su Wen started the rhythm of choosing her son-in-law every day, all of them are handsome and talented. One body is better than the other, and the family background is better than the other. It’s so hard to choose!

Someone who was left out aggressively blocked her behind the door: “Am I handsome? Is my figure good? Is my family strong?”

Su Wen: “…But they are my sister-in-law.”

“My whole body is yours. I will give you the passbook, and I will give you my life.”

The next day, Su Wen woke up and looked at more than twenty passbooks, lost in thought…

- Description from novelbuddy

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

- Description from Novelupdates

He was the youngest guru of martial arts as well as the perfect Mr. McDreamy of the most girls. He had mysterious absolute touch, clear-sighted observation ability and various outstanding talents.

But now, he was just an ordinary freshman in University of Jiangjing Chinese Medicine, who wanted to learn Chinese Medicine, see patients, and get into a relationship with a girl in a low-key way. However, in a Mid-Autumn Festival party, he was forced to put on a performance, which shocked the whole audience. The shiny and wonderful university life began from then on.

In the university, he met a beautiful and smart School Beauty Jiang Miaoyu who shook his heart slightly. But the road of love was never smooth, even to a perfect hero.

He also met a kind and friendly teacher Dr. Shen who discovered his excellent technique and gave him a chance to practice.
Besides, his three lovely and interesting roommates were indispensable in his life, although sometimes they looked a little awkward.
But this young hero’s life was not always full of happiness without a hitch, some trouble still appeared from time to time. The domineering and imperious President of the Students’ Union Li Qingshi purposely made difficulties for him repeatedly. The stubborn and hardworking martial arts practitioner Chen Cong often challenged him in different ways.

Just because of these extraordinary personalities around him, this young hero’s road of struggle looked so amazing…

- Description from novelupdates