STRUSH （ストラッシュ）,On the surface, a detective... but in the shadows, a dark operative. The protagonist, Shinobu Aiba, is tasked with investigating a series of mysterious student disappearances at a prestigious private academy. As Shinobu begins the investigation, another student vanishes! Aided by a beautiful girl and trusted partners within the academy, Shinobu uncovers clues pointing to a large-scale organization's involvement. Where have the missing girls gone? And what is the significant change that befalls Shinobu? Set in a private academy, an unexpectedly complex and challenging case unfolds!