after the dying to kokushibo (koku puffs) muichiro and genya are reborn into the modern world they go challenges of hiding their relationships because they are told the can't be together
Izuku is gonna confess to all of his crushes to see if he could take them on a date to see who he likes the most but when he sees they already have a boy/girlfriend he chickens out and feels like his world has been shattered.He sees Kirishima who feels the same and they start hanging out till one thing leads to another.Turns out both of them were wrong about their crushes relationships but they don't care anymore because they have each other and love each other dearly.