A puzzle-solving game where you play as student council president Akane,
who is trying to solve the seven mysteries of the school.
Find and create items to help solve the mystery.
However, as Akane will soon find out, the truth of the seven mysteries is much lewder than the rumors...
And it seems there is something beyond the 7 mysteries lurking at this school.
A monster? A ghost? Or is it a human...?
Can Akane bring order back to this school?