Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
大牙, a detective, went to a villa in Karuizawa where his father was recuperating as an attendant of Aso, a Rupowriter.
Aso was found out to be, and his family home, Aso Konzern, was disowned, so he didn't get along well with his younger brother, Kaoru.
There was a threatening letter sent to the villa, and when he met a man who was said to be a "detective" hired by Kaoru, he was shocked.
His face is apparently related to the body of the big tusk at the killer Hwamun?