You were in the library and tried to choose a book. Many things that you have already read before did not attract your attention. It was really difficult to choose. Sighing wearily, you didn't stop looking for the book.

After 10 minutes, or maybe 15, you heard rustling, but when you turned around, you didn't see anyone. You shrugged and turned back to the shelf. Suddenly someone touches you from behind and scares you.

"BOO! Scared? Hee-hee~"