I Secretly Develop Myself In The Demon World - Chapter 41 - : Demon’s Mutation

The most beautiful woman in Jinggang, Hua Nong, spent the night with the legal circle tycoon Lu Jing'an, and upon waking up, tossed him a piece of steel coin.The next day, Hua Nong pleaded in front of Lu Jing'an, and the man smirked coolly: “Mr. Lu is just a beast in clothes, worth only one yuan?”Hua Nong smiled on the surface but cursed inside: “Young Master Lu may not know, in certain moments, 'beast in clothes' is a compliment.”“For example?” Lu Jing'an's tone was cool.“In bed,” Hua Nong tried to explain further....In the second year of Hua Nong's marriage to Lu Jing'an, their married life was sweet and became a model couple in Jinggang, until... Lu Jing'an's ex-girlfriend returned...Hua Nong drowned her sorrows in alcohol and posted a Weibo: [Single, lonely, waiting for love...]

The Empress does not grant my resignation.

The simulation is over, and the entry is obtained: a showdown!

Looking at this entry, Zhao Meng was stunned.

“How should this term be used?”

“Hey! Here’s a wounded fox!”

…

A few years later, a woman who looked like a fairy appeared in front of him, and said:

“My lord, I’m here to repay my favor!”

This book is also called “Starting from Transforming Monsters”

- Description from novelbuddy

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.