Extra's Strategy: Cultivate Protagonists, Become Invincible - Chapter 17: Elder Wu Di’s Nightmare

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

Reborn in a frail body disgraced by its family, Zhuang Xing—the once-legendary Pill God—awakens to a brutal world where martial prowess defines destiny. Surviving an attempt on his life by his own family’s henchmen, he realizes he’s been reborn in the Great Qi Country as the despised son of the Zhuang family.Three months before the prestigious Hidden Dragon Ranking, Zhuang Xing must rise above his limitations to claim his birthright and reclaim his former strength. With enemies surrounding him, will Zhuang Xing overcome his frail shell and silence those who doubt him?

Zheng Tan somehow returns to the year 2003, turning into a black cat. Picked up from a rubbish heap by the Jiao family, he is given the name “Charcoal”, and so begins the life inside Professor Jiao’s family. Zheng Tan remembers that he was once a person, but currently his body is that of a cat. He has no way of speaking the human language, but can understand it, and even retains the thinking and IQ of a young 20 year old youth. Read along as he adapts to this new world, and somehow tumbles from a group brawl to catching a thief.

- Description from Novelupdates

I was a failed experiment