Whenever someone turns 18, the initials of their soulmate appear on their wrist. That day was Shoto's birthday, he was with his friends waiting at 12:00, time when the initials of his soulmate would appear. Deku: "Aren't you excited? You're closer to meeting your soulmate." Shoto, while excited, also wondered if his soulmate would accept him as he is, with all his flaws and insecurities.