Bistro Sangen-tei is a small place in Sangen-jaya, Tokyo. There is no menu. In this special bistro, guests can ask for whatever they'd like to eat, and it will be served. The chef has a great talent in not only cooking, but also solving mysteries. Sometimes he becomes aware of small problems guest have in their mind...he then tries to show solutions by his dishes. But this chef had a secret...that he never wishes to reveal. A comforting gourmet-mystery.