EPISODE CONTEXT

Episode 10 arrives in the direct aftermath of Episode 9's Jack the Ripper imitation threat targeting students, escalating internal danger within Dan Detective School from an outside menace to something disturbingly close to home. This episode deepens that crisis by centering the investigation on a double locked-room mystery, pushing the stakes higher and positioning Ryuu as a key figure in the school's response. It functions as a pivotal mid-setup chapter that feeds directly into Episode 11, where the full scope of the school's internal dynamics and the true nature of the threat are expected to come into sharper focus.