Ancient Eden - Chapter 53

Living things really are ignorant – the greed to obtain the key to knowledge and the fundamentals of energy overpowers them. Little do they know that knowledge is full of lies and energy is the root of destruction. Us, mages, have mastered travelling through space and time. We are invincible, we can turn worlds into dust and you, mere ants, will be wiped out with no trace.

-Mage Adam

An A.I.(Artificial Intelligence) gets reincarnated into a world where he becomes a mage.

Dimensional Knights—legendary heroes who uphold order across the infinite realms. Wielding powers beyond comprehension, their purpose is singular and unwavering: to preserve the balance between worlds and defend against the ever-looming threats that seek to plunge them into chaos.Zane, a boy from Earth—one of the weakest and most forgotten realms—had his world forever changed the day he first witnessed the awe-inspiring power of the Dimensional Knights. In that moment, a dream was born. He wanted to become one of them. A hero. A symbol of strength and salvation.But fate had other plans.One tragic event shattered his world and dragged him into a downward spiral from which there was no escape. As the years passed, the dream that once filled him with hope twisted into something far more desperate. Becoming a Dimensional Knight was no longer about admiration or ideals—it became his only path forward. His only way to fight back. His only way to reach those who caused him immense pain and blood.Now, Zane's journey is not about heroism. It's about vengeance, survival, and rewriting the destiny forced upon him by those who wished for his death.Unbeknowst to him, this very path he was taking would change the order of the world forever.

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.

The MC entered the body of the An family eldest son, An Ziran, an arrogant 16 years old boy who weighed 78 kg (~171-172 lbs), who only knew how to eat, play and sleep. Seeing his current body, An Ziran decided his first priority was to LOSE WEIGHT!

Three days later after he became An Ziran, An Ziran’s father and his biological mother died, which meant as the eldest son he had to take over the family business.

Beside his legitimate first wife, An Ziran’s father also married 3 others women, who all wanted to take over the An family fortune but only the eldest son could be able to touch it, therefore they have to depend on An Ziran in order to live a comfortable live.

An Ziran’s father also had an older brother who is always planning to steal the An family fortune. The elder brother of An Ziran’s father and the woman he married had powerful connections. In order to save the An family fortune, An Ziran has to find a golden thigh to cling on. The butler told An Ziran that there is an engagement between the An family and an influential family. Therefore he takes his sister to that family house to make a connection.

However, during their journey, An Ziran’s younger sister overheard that the son of that family is UGLY, so as a beautiful and spoiled young lady coming from a rich household, she didn’t want to marry him and decided to run away. Without any other choice, An Ziran had to take his sister’s​ place and marry that man, who told him that he would let him go soon, but lied.

- Description from Novelupdates