A bizarre incident occurs where a large number of people are suspended from a hot air balloon with their limbs bound by ropes. From the method of operation, the police suspect that it might be the work of a criminal known as the "Comedy Writer," who mysteriously disappeared ten years ago and has the ability to manipulate consciousness. Meanwhile, after a five-year hiatus, an incident occurs during a circus performance where a member of the troupe throws a dining knife at another member. At first glance, these two incidents seem unrelated, but they share a common point: the memories of those involved have been erased...