Synopsis: 100 Dollar wa Yasu Sugiru

Amid a throng of bounty hunters, Petey operates as one of them. The ranks of the criminals are minimal compared to that of the bounty hunters, and advertisements for their capture typically go down in no time. Nevertheless, there is one noteworthy case. A criminal's poster offering a negative bounty remains unnoticed by the hunters. Despite its lack of reward, Petey finds herself intrigued with the criminal's case and recruits the services of a professional detective.