Reverse au + dating/married + based off Osora ch. 17 on WEBTOON, also recommend highly!!

During some free time from beating up heroes, you two always stayed together… like right now. You and your small self was sat on his lap/stomach, complaining at why he was so invested in this ‘Shimura’ hero. Like- who keeps their name for a hero name?! ”Absolutely everything. He’s quite interesting, I have to say. But… you don’t have to worry about him, bun. He’s not ’that’ interesting.”