Nao Haie, a former elite lawyer turned detective, specializes in solving complex inheritance cases with the help of his unique team of friends. Reiko Mitomi, a medical student and Nao's assistant works alongside Hideki Tomonaga, a former ace researcher, now employed at a private appraisal company, as they tackle challenging and intricate cases.

• Eiji Akaso
• Hiyori Sakurada
• Yuma Yamoto
• Motoki Ochiai
• Kiyohiko Shibukawa
• Takahiro Miura
• Masaya Katō
• Kenji Mizuhashi