My Baby Daddy Isn't Human - Chapter 8: DNA Test

A mecha otaku is reincarnated into another world as Ernesti Echevalier (Eru). In this world there exist huge humanoid weapons known as Silhouette Knight. Dreaming of piloting those robots, Eru, with childhood friends, Archid Walter and Adeltrud Walter: together they will aim to become a Knight Runner, pilot of Silhoutte Knight.

“Su Jingzhen, you’re not young anymore, and your sister-in-law has come to ask you. Do you want a Dao Companion or not?”“Sister-in-law, who is it?”“I…”As a male cultivator, Su Jingzhen had always thought that he would live a peaceful life in the immortal world, but unexpectedly, he became the hardest whetstone to sharpen others.

He was the continent’s strongest and most revered alchemist, Ye Zifeng. He was under one person and above millions. However, due to an unpredictable event, he had died. After his rebirth, he had become the supertrash of the Ye family and suffered disgrace. To make matters worse, he had an argument with his fiancé that led to the break off of his engagement. In this second life, he will work to change his own destiny. He vows to return to the peak of the world, trample on those who laughed at him and rewrite his legacy!

- Description from Novelupdates

A fighting genius.