Set in a AU where after you turn 16 when your soulmate dies you stop physically aging. Jiro and Kaminari, as 3rd years, decide to work together as a pro hero and sidekick dou. Liking each other but always freindzoning eachother in fear the other might not like them back. And after 1 job that leaves one of them alone they find out maybe it was love. Angst warning