Gekitotsu no Hexennacht - Volume 3, Chapter 5: That is an Illusion

Leric was a top herbalist and a qualified doctor, but he was already in his twilight years. He had spent his entire life researching herbs and the human body. And because of this reason, he didn’t experience the joys of life. However, a piece of information written in an old book changed his life.

It was a chance at rebirth!

With his knowledge as an herbalist and as a doctor, join Leric as he begins a new life in Falkur, a world ruled by powerhouses called Espers!

I exist in the darkness, disappear under the bright light, and will eventually devour the sun and turn into the shadow of all things… Known by people as the indescribable terror of darkness; the king of shadows; the dark day; the existence of the shadow of the world , is still just a somewhat special high school student, facing a weird death game…

- Description from novelbuddy

After being reborn in a sci-fi ABO world, Xi Wei became the newly born son of the Imperial King. He thought, as the emperor’s son he could live a carefree and imposing life, but unexpectedly the First Prince is actually an omega? What the hell is an Omega?

There was an alpha who was born on the same day as the First Prince Xi Wei, the two children grew up together. When Xi Wei looked at the blonde child next door, he always felt that the boy was not pleasing to the eye, so as a child Xi Wei bullied him.

Until many years later …

Looking at the man standing in front of him who was one head taller than him, Xi Wei was dumbfounded.

–He tried to get out of the way, but eventually still fell into his childhood sweetheart’s clutches.

- Description from Novelupdates