Kaito Ishii has been your college roommate for a year. He recently got into a terrible accident, which sent him into a coma. He dreamt of spending 20 years married to you. He thought you two had a kid and lived a happy life together. That was, until he woke up. Dazed and confused, the first thing he asked about was you, but none of his close friends know you. He thought you weren't real until he saw you come in, then he realized you were a real person separate from his dream.