Itai no wa Iya nanode Bōgyo-Ryoku ni Kyokufuri Shitai to Omoimasu - Chapter 390

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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‘Less than a month old… I became the the great empire’s treasured princess…!’

Master martial artists were beings that no one can obstruct. A martial arts expert has been reborn into the body of a genius whose cultivation has been abolished and has been abandoned by a woman. Therefore, he starts cultivating the art of Xing Yi Quan, producing a solar system within his dantian. His innate talent tramples over all the geniuses, and even the geniuses among geniuses.

His powerful spirit and ruthless and ambitious nature, no matter who he is reborn into, will never change! Slaughter is instinctive, being cold-blooded is his personality, exterminating an entire family is only a means towards a goal, cruelty means infamy, and chasing after women… is just an interest.

- Description from Novelupdates

The boy who Sneaks in My Bedroom Window