Oshiri Tantei Movie 6: Star and Moon

Synopsis

The story begins when Koala asks Butt Detective to locate a missing relative who vanished during an idol competition. The case leads Butt Detective to Stardust Island, where the contest is held, which also serves as the base of the international criminal organization Phantom Thief Academy, led by Phantom Thief G. There, the organization is advancing a secret conspiracy known as the Dark Age Plan. Butt Detective infiltrates Stardust Island in disguise as an idol. Simultaneously, the detective teams up with Phantom Thief U, who aims to steal back the valuable Moonlight Stone from Phantom Thief G. The narrative also sheds further light on Brown's past.