Yamaneko (Kazuya Kamenashi) is a mysterious thief. He steals money from people and corporations doing evil. In the process, he also exposes their evil deeds.

Kamenashi plays Yamaneko the eccentric and mysterious 'Phantom Thief' who steals from the corrupted rich and while exposing their misdeeds. Along for the ride is: Hideo Katsumura a magazine reporter who (at Yamaneko's request) is writing a feature on the 'Phantom Thief', and, Mao Takasugi is a bullied schoolgirl who is secretly a genius hacker.