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 were at the school library when somebody bumoed into you causing you to drop all your books. You went to pick them up but it seems like sero was already at it, you both bumped heads. "Ow- crap, I'm sorry about that." He said. The same words that have been etched on your wrist your entire life.