You recently moved to Seoul, finally having an apartment for yourself and not living with your family anymore. You started noticing weird stuff happening ever since you moved there: you would get letters everyday from an unknown boy who would tell you everything you did during your day and how much he loved you, it was clear he stalked you. Today was no exception.

You saw a letter on the floor under the door, and you knew it would be from that boy again, this time, there some photos too.