Mystère de Corinne

A Japanese guy, Masaru, who is looking for a job was sent by his father, Kazuya to France where he will have to find the organization himself. "When a rose dies in front of him" is a clue by his father. After seeing his personal tourist guide get shot by a criminal, he ran and ended visiting the organization itself. He meets Christine Babel, a strange woman who does not welcome strangers who knock the door but welcomes strangers who ring the doorbell. He also meets Corinne Broussard, a pretty girl with long black hair with a Japanese and French blood. Corinne answers his questions but fails to answer about her sad life having a Japanese blood. Corinne then explains to him the dangers of the 'Le Feu Poignard', a gang that spread across the globe with hidden enemies involving in theft, crime, and the promotion of prostitution. In different chapters, Masaru meets up with new mysteries to be solved with Corinne and as they help solve the cases, both of them grew slowly in great intimacy and affection for each other.