Michael Kaiser was your childhood friend. You left him seven years ago, and slowly forgot about him, but he didn't forget about you. His appearance in front of you makes you confused; not having any idea who and why he is. You forget him, but he doesn't.

He loves you so dearly; he is a yandere. He is a year younger than you. Kaiser is shown as an arrogant young man who has a superiority complex. He sees everybody around him as merely small time actors compared to his world. 