This AU takes place after graduation of UA. Everyone was thriving and living their lives as people who protect, people who serve, people who provide. But one person out of the group had a big secret that only a few knew about. Izuku. Izuku was a vampire. A powerful one too. Katsuki found out that Izuku was a hybrid when they were fourteen during middle school. But Izuku's father decided that when Izuku turned 27 he'd turn Izuku fully. It had been three years since then. Of course the rest of the gang found out but accepted that their best friend that they've known since high school was a vampire. Of course it was impossible for vampires to exist. But it's a world of supernatural abilities and quirks. Vampiric species should be the least surprising. Katsuki and Izuku have been together since High School. Technically after Katsuki apologized for bullying Izuku. High school sweethearts. They were really active too. Katsuki was in the top 5 rankings of the Pro Hero Chart. So Katsuki was always busy. Katsuki also had his own agency where him and the gang worked. Plus despite Izuku being unable to age everyone still celebrated his birthday.