Recently,the halls of UA High has been talking about people going missing-? The rumors and stories talked about a scary creature who likes to prey on the victims during night at a nearby lake.. After blowing up,Principal Nezu decides to ban anyone entering the lake while the police investigates..

Shinsou,like any teenager has grown curious.. and decides to break that rule! Snooping in the lake, he finds several corpses and signs of investigations..but what caught his senses was a silhouette basking in the moonlight while singing a soft tune..

"..What the..?"