3rd Year Secret: Bright and energetic on the outside, but cold and heartless on the inside.

3rd Year Secret: A secret spy sent from somewhere to monitor them while pretending to be a student.

3rd Year Secret: A grim reaper-like being who manages the souls of the dead.

2nd Year Secret: A student who is already dead, but no one knows. He appears blurry when standing in front of a mirror or taking a photo.

2nd Year Secret: He has lived longer than anyone else and his appearance does not age. Having lived so long, he knows exactly how the world works.

1st Year Secret: A divine beast who descended from the heavens and loves humans.

1st Year Secret: A shadow person. He has no presence, and at night, he disappears somewhere alone.

1st Year Secret: The weather changes according to her emotions.

Year 1.5(?)... Senior to the 1st years for now. Secret: He came from the future, but doesn't know much about it... he only knows small fragments.

1st Year... but he doesn't even call his seniors 'senior'. Secret: A nine-tailed fox. He usually hides his ears and tail, and at night, foxfire-like lights can be seen faintly around him.