Higashino, a dull private detective, hears a woman scream while she is clearing up his request.
It was Ayane Akimoto, a wealthy daughter, who was attacked in a nearby alley.
Rescue from her thugs and talk to her, Higashino says she looks just like her brother Ayane.
Higashino, who heard that his brother was missing,
glared at the conspiracy of inheritance behind
him and decided to sneak into the Akimoto family to protect Ayane
