The heinous killer Yuuki Ogawara, whom high school detective Jun Kurooshi helped arrest, has escaped. The real tragedy that happened on a night of thunderstorms is not that the murderer killed all the people in the house, not that his crush Kanae was attacked by his own brother ─ it was that the fact that the most sinister monster was born. The psychological suspense unfolded by the extraordinary genius and the police begins!