Kanji Senkawa receives requests which the police or private investigators can't handle. He solves the cases by threatening people. Kanji Senkawa meets wealthy university student Mio Kanesaka. She has a good heart and and can't ignore those in difficult situations. Kanji and Mio get involved in various cases including voice phishing and kidnappings.

• Dean Fujioka
• Emi Takei
• Hiroki Miyake
• Haruka Shimazaki
• Masaomi Kondo
• Yoshikazu Ebisu
• Ryo Sato
• Nobuyuki Suzuki