This drama is adapted from the novel "Lunch Detective" series by the author Shuiseng Dahai. In the drama, Meiyue plays the role of Taira Yuka, a reasoning enthusiast who is not good at socializing but has excellent observation skills and suddenly changes in the face of mysteries. For this role, she cut off 35cm of her beautiful hair and appears with a short hairstyle. Yuka will use her natural reasoning ability to tackle the ghost stories rumored within the company and the whereabouts of missing individuals around her. Additionally, her partner participating in the lunch social is the pure-looking carnivorous woman Akuzumi Reiko, played by Reina, who dislikes accepting favors from men. Their company’s supervisor, Kameda Hiroshi, is portrayed by Kimura Yuuichi, while the outstanding and popular employee among women, Sakurai Kento, is played by Riki. Each episode will feature different handsome guest stars and charismatic actors full of personality, and of course, the 'delicious lunch' that whets the appetite is also a highlight of the drama.