Investigating a mysterious case at Hope's Peak.

Kyoko Kirigiri, one of the two Ultimate detectives at Hope's peak academy, was one of the greatest minds of her generation. Talented, Smart, Shrewd, and Determined, there was no **** case she couldn't resolve.

But as things would turn out, this next case would prove to be very challenging and tough, even for her.

The details are the following ; over the last two months, about a dozen or so students of both the reserve and the main course, were found lying knocked out and naked on the grounds of the academy. All of them showed no signs of psysical injuries, but when they awoke, no one couldn't remember whan happened before they were knocked out.

At first, the authorities of the academy asumed that this was simply a prank. But as more and more naked students were found as time went on, they decided to take this seriously, for it could damage the academies reputation if they showed that they couldn't protect the students inside of the faculties.

And so, not wanting to endanger more students, they called the police to investigate the case. But not only they couldn't solve it, but also a couple of policemen were also found naked in the academy. With no options left, the academy decided to call it's own students to help solve the case themselves, and that's when Ultimate detective Kyoko Kirigiri comes in.