Katsuki Bakugo is a successful Pro Hero, while Y/n, her former classmate and ex-boyfriend from U.A., became a professional assassin instead. They broke up badly but never truly stopped loving each other. Years later, they are assigned to the same undercover mission. During a briefing with Aizawa, All Might and the other Heroes, they discover they must pretend to be a couple to infiltrate a dangerous organization, uncover its members and capture them. Neither knows that Haruki used to work for the same organization. Forced to live and act as a couple again, old feelings resurface. They finally confront their past, understand why their relationship failed, and slowly fall in love again.
In the village of Berk, where dragons are feared creatures, Y/n Aizawa—son of leaders Shota Aizawa and Hizashi Yamada—is the only one who believes they can coexist with humans. An encounter with a legendary dragon will change his destiny and challenge everything the village has ever believed. By his side—or perhaps against him—stands Katsuki Bakugo, the strongest warrior of his generation. Amidst ancient legends, dragon riders, battles, and feelings impossible to ignore, Y/n and Katsuki will discover that the hardest bond to forge isn't the one with a dragon, but the one between two completely different people.
In a kingdom where magic, technology, and politics coexist, Y/n is a young inventor who has transformed his land’s future with his creations. Raised by the people who gave him a family when he had nothing left, he harbors a secret that could destroy everything: the blood of the continent’s most feared man runs through his veins. Katsuki Bakugo is the Crown Prince of the Kingdom of Katsuragi, destined to ascend the throne one day. Impulsive, proud, and stubborn, he is the exact opposite of Y/n—or so it seems. Amidst bickering, impossible inventions, and a looming war, two people from different worlds will discover that some things cannot be controlled, not even by destiny. ——— This is the first story I'm publishing; I hope you like it!