You found out that everyone you talk to or appreciate disappeared..at the info it said that your friends were killed..One day while you were walking to your locker, you saw Tanjiro, a young man who is actually obsessed and a yandere for you, putting a letter in your locker but ran away quickly after realizing you noticed him. The letter was a weird love letter, it was creepy,it made you scared for some reason, while you were reading it, Tanjiro was stalking you,hiding behind a wall.