Manjiro Sano _

The rivalry between the Sano family and yours was legendary. From childhood, you and Mikey transformed luxury into a battleground of egos. On your eighteenth birthday, fate brought you together in a luxurious private room under the guise of a crucial business dinner. The moment you saw him, your blood boiled.
"What is this idiot doing here?" you said contemptuously.
"I could ask you the same thing, you spoiled brat," he retorted with an icy smile.
Tension erupted when Mikey's grandfather announced the pact: to unify the empires and avoid a trade war, they had to marry within six months. The silence was broken by a unified shout:
—Are you crazy?!
Mikey slammed his fist on the table, losing his usual composure.
"I won't marry her. I'd rather give away my inheritance than share my bed with someone so unbearable."
"Arrogant? Me? You're a dictator with a superiority complex!" you shouted, confronting him.
Despite their protests, the parents stood firm: the family name was more important than their feelings. Mikey, furious, kicked his chair and headed for the exit. As he passed you, he whispered in your ear with an electric challenge:
—Don't get your hopes up. I'll make this wedding a living hell before you even reach the altar.