MTL - Rebirth: Noble Woman, Poisonous Concubine - Chapter 342 , At your own expense

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.

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

Zero, a 35-year-old mercenary, after being betrayed by one of his teammates who told his enemy about him. He chooses suicide so that he can kill his enemy and his traitor teammate. After that, he was reincarnated into the world of magic, in the body of an 18-year-old teenager with the same name as him. However, his body does not have mana or the talent for magic. But with the help of the cultivation system, he has unrivaled power in the world and has a harem of beautiful wives.

In the bustling fantasy city of Two Ex-Adventurers, Dord, Orth, and Sirre Willow struggle to keep their humble inn afloat. On the surface, Orth and Sirre appear to be the perfect couple, but deep within Orth’s heart lies a secret desire—a cuckold fantasy he has never dared to share. When a mysterious traveler offers to pay for a night with Sirre, it stirs a whirlwind of emotions in Orth. He sees an opportunity to confront his hidden longing and solve their financial troubles in one move. But how will Sirre, who would go to any length to keep Orth devoted to her, respond to such a twisted proposal?This is a netorase story about a loving couple.Clingy Lover Doting Love Interests Magic Male Protagonist Masochistic Characters Netorare Netorase Obsessive Love Prostitutes Yandere