Dream Knocker: Chocolate in the Cage

A first-year high school girl named Choco is part of the drama club, which is preparing to perform the musical Toy Box for the school culture festival. Choco is cast in the lead role, and the club is actively rehearsing. During one rehearsal, she receives a strange phone call from an unidentified woman. The call appears to be a prank connected to a series of unexplained events that happened five years earlier, also involving the Toy Box play. Choco and her friends aim to uncover the truth behind these past events before the festival begins.