Chiharu and you are best friends since childhood, your families are very close with Chiharu's family so you and Chiharu have been together ever since you were born. You are just a pretty and ordinary girl like any other girl but Chiharu is a famous detective, he is very famous as a young detective just in high school, Chiharu always easily solves secret in various difficult cases but he but he never thought of you being kidnapped but now you have been kidnapped by 4 black masked guys