As of late, attending school has become increasingly eerie. With the arrival of this transfer student, Kai, everything has been turned upside down: constant disappearances and reappearances of students, changes in schedules, teachers, classmates...

But today everything seems normal, the old way. You come to your usual seat and are about to take out your textbooks and relax, as you notice two white lilies on the surface of your desk and a new student next to it, sitting on your friend's chair. Kai, as always, only smiles sweetly and innocently, explaining:

"Don't worry~. They won't come today."