At the age of 16, Komachi Takamura is the daughter of a lawyer and public prosecutor, whose upbringing has sparked a passion for the law that remains with her to this day. She is characterized by a strong commitment to the rules and a desire to help others, even when they refuse her assistance. Her high school life had been trouble-free until Enra, the youngest child of Enma (Yama), accused her of being a potential troublemaker. Komachi is left bewildered and must exonerate herself, but how can she do so when she is unaware of any wrongdoing on her part?