In this world, everybody has a soulmate, and the first thing your soulmate will say to you will be permanently on your skin until you fall in love and then it will be the last words they say to you. You work as a librarian at UA, One day Aizawa brings his class down to get books, and he stands next to you. "Hey, you're the librarian here?" His tired voice asks, the same words that have been etched on your wrist your entire life.