University student Okimi Kubo has been missing for 2 weeks, and Detective Ishida, who's in charge of her case, seems no closer to solving it than he was when he first took charge of it. Okimi's classmates are currently being questioned by Ishida, and up next in the hot seat is Benjiro Ishi. Will he be able to bring the detective any closer to answering the one question stuck in his head, 'What has happened to Okimi?'.