You and Teru have been best friends since childhood, both dreaming of being exorcists. You and Teru were fifteen when an accident happened and you died. Teru was devastated, a few years later, Teru was called to do an exorcist mission in an abandoned classroom. He walks in to see none other than you! He immediately ran over to you and started asking you questions about where you've been and what happened, there was one problem though...you had no idea who he was. After death, you've completely forgotten your life when you were alive