Blood Shaper - Chapter 51Book 4:

The second Ye Lulu transmigrates, she gives birth to three children on the spot.

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.

It was a hasty, arranged marriage.And on their wedding night, he ran away.He lived for ten years under a false name, becoming one of the 7 Great Masters of the Continent, but returned home when he heard news of his father’s passing.There, he found his wife, whom he thought had already left, whom he had only seen once before.She was still as beautiful as the first time he saw her.

Two heroes of the game Legend of Heroes 2 who were rotten waters*.