Applied Immortality - Chapter 10: Shocking Change

In a world where Spirit Summoners bond with legendary heroes to save civilization, I awakened as F-Rank—the absolute weakest.While my classmates summoned knights, saints, and mythic champions, my summoning glitched. The circle turned red, and when the smoke cleared, I was staring at the Tyrant Empress—a Calamity-tier villainess who nearly destroyed the world 800 years ago.Everyone calls me cursed. Dangerous. A threat that should be eliminated.They're right to be afraid.Because the Tyrant Empress wasn't the only one who answered my call.And unlike the others, my strength is forged in pleasure.Through forbidden dual cultivation with my villainesses, I grow without end.My name is Cade Marlowe, and I don't summon heroes.I only summon villainesses.

She, a hidden technology boss, is obsessed with blood and kinship. She died tragically in a previous life and has a new life. She just wants to protect her true relatives!

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?? He, the Emperor of Dark Night, glanced at her inadvertently and caught a glimpse of her stubborn appearance with tears in the corners of her eyes. Since then, he has embarked on the road of pampering the girl, and he will never return!

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But who knows, the Jiaojiao girl in her arms is a real all-around boss.

The boss of the world’s No. 1 chaebol: “Is there any order for Miss An? The little one is willing to help Miss An.”

Dean of the Global Research Institute: “Miss An, I heard that you like the sea, I bought ten islands for you…”

The world’s number one hacker: “What? Someone bullied my boss? Hehe, courting death!”

The world’s first medical doctor: “Miss An, do I have the honor to come to your twentieth birthday party?”

…

When luxury cars came to the capital and the big guys lined up to greet the girls of the An family, the world shook, and the whole world was shocked!

- Description from novelbuddy

Just as a gamer found an overpowered skill book called ‘Item Upgrade’ in the hottest virtual reality role-playing game on Earth, something happened to the game’s system, causing his soul to leave his body and go to another dimension. Common sense dictates that he would be born anew then become the greatest overlord of this world by making use of his advanced knowledge. Not in this case! He was already dead. Only some fragments of his soul and that skill book managed to get into that dimension and merge with an ordinary common youngster called Bai Yunfei.

This was the enormous Tianhun continent, where humans could be said to have no limits. There was a group of humans here who could cultivate the power of their own souls then control their bodies, the natural elements and even other people’s souls with that power! These special beings were called — soul cultivators. Come witness how the several fragments of the dead inter-dimensional traveler’s soul and that skill book, which was not governed by the laws of this plane, were going to help Bai Yunfei become a legendary soul cultivator and craftsman!

A man reincarnates in the body of a boy who suffered a tragedy, only to realize that he is in the world of My Hero Academia. What's even stranger is that his quirk seems to have the abilities of Nen and Haki.