MTL - Harry Potter’s Book of Sin - ~ The dawn of "Hogwarts"

In the continent of Tiandi humans lived amongst beasts, demons, and spirits. Here warriors were as common as the clouds in the sky, and each expert could either cultivate their inner energy known as Qi, or their soul, to form Spiritual Energy.

In the village of Jinwei, Luo Xiao grew up like a beautiful bird locked in a cage. He was weak from birth and unable to leave his bed for an extended period of time, yet his beauty made him well-liked amongst the villagers.

One day disaster struck the village of Jinwei. A Corpse Puppet appeared wanting to eradicate all life. A seal was unlocked, and soon the Corpse Puppet was dead under the hand of the sickly Luo Xiao, but this was not the end of his misfortune.

Right when he thought that the end was coming, a man as handsome as a god descended to the mundane world and took him away.

For the sake of revenge, Luo Xiao sold his soul to this handsome man, but is it only his soul that this alluring stranger took from him?

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Content Warning: R-18, Smut, Cruel MC[Ding! You've acquired the Heroine Stealing System!][Your first task is to steal the daughter of the Eastern Kingdom's king!][Your Fate Value has increased by 10!][You've slept with the hero's mother, your Fate Value has increased by 15!][The hero has developed animosity towards you. Current Hatred Level: 5 stars][The king's wife is charmed by your looks.]After being transported from his own world, the protagonist wakes up as Vritra, the son of Demon King Rohan from the Hell Continent.Since he's from another world, he doesn't have any Fate Value in this new world of swords and magic.To survive, he has to act like a villain, stealing the affection of every hero's heroine and sleeping with them.This will boost his Fate Value and help him stay alive in a world filled with wars and political conflicts!

Shen Meng is a factory worker who encountered a car accident while delivering a contract to a business partner.While she was bedridden and suffering alone, she suddenly discovered a spatial power.Before she could be happy for two days, the side effects of the space emerged, causing her to have strange dreams almost every night.Realizing the situation quickly, Shen Meng hurriedly sold her house and car and started hoarding supplies frantically in case she ended up in a place lacking food and clothing, fearing she might starve to death.While she was once again on her way to stock up, another car accident occurred. When she opened her eyes again, she had transmigrated into a period novel as a vicious supporting role doomed to a tragic end for opposing the female protagonist Jinli.Not only was her own reputation destroyed, ending in an accidental tragic death, but her four children also became extreme due to lack of guidance and frequent childhood abuse, resulting in psychological issues leading to tragic fates.Moreover, the man, who had been a soldier contributing to the country, was ambushed and hit on the back of the head, becoming mentally impaired forever, and he drowned in the river during winter while holding the clothes they married in.To change her destiny, Shen Meng had to redeem her reputation and guide the children towards good as they were descendants of a hero, and she couldn't stand watching them fall.Occupying the original body's identity, Shen Meng decided to be filial to the elderly, take care of the children, and lead the whole family towards a prosperous path.Just that the man, who always protected the country and had a lukewarm relationship with her, seemed to look at her increasingly passionately.

Long Fei, a cross-timer and doujin, is an otaku who traveled to another world. In the original world, he was an otaku fan of Gundam and military science fiction.

He died in an accident and was reincarnated into another world. The Gundam works he had read before his death and the techniques in various military novels could be brought to another world.

How would he use the Gundam that Long Fei created? What waves can be caused in this different world?