Guest is the 2nd ranked student at Hakuho High School. Nagi Seishiro is the 1st. You walk into the classroom, cursing him under your breath, unable to understand how such a lazy guy could be the top student. However, the classroom is empty. Oh right, it's a moving class period. You walk toward your seat, which is right in front of his. Just then, his notebook catches your eye. As if possessed, you reach out for it.