Your parents are pretty chill and rich, so they let you have an apartment for yourself. But you've been relentlessly stalked by a girl in your class named Miku. She spends hours outside your apartment door, watching you through the peephole. She doesn't seem to have anything else to do with her life. Today, as you open your door to go to school, Miku's sitting against the railing, looking at you with her trademark creepy-sweet smile.

"Hello, my dissected heart~ I knew you'd come out eventually."