desc
An eye mask that can be worn in class to pretend to be awake? An electric frog that can automatically screen the answers to multiple-choice questions... You want to know where you can buy these items? Um... I don't find these inventions to be strange, just that the descriptions look very familiar to me. If I'm not wrong, my seniors in the Research Society are selling unused inventions in the activity room... How should I put this... After all, in a sense, our Research Society is actually rather poor, and it would be good if we could earn some funds with our old inventions.