I, The Celestial Dragon, Rule The Heavens Through The Double Gate - Chapter 157: Teigu Given To Rika Minami

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

Luo Yi, a high school dropout in his original world, was isekai’d into the world of the Witcher 3. Starting out as a weak boy named Roy in the village of Kaer, Lower Posada, he was determined to grow stronger, no matter what it took. The first step toward becoming a legend was to kill. And his first kill was… a rooster. ‘You gain 1 EXP.’ Of course, Roy had his own cheat system like all the other isekai protagonists. His first step to becoming a legend started now…

A city of academies where high school girls converse with swords and spears in hand.A comedy character who loves macarons and a cup of tea.Becoming a pink-haired dummy in a mobile game, acting as the weakest character with the pretty filter in my mouth and body.Yet in my heart, a man’s fighting spirit still boils like lava.“What a cutie. Ohoho☆”

"I hope my wife liked the arrangements... for the wedding night."