Mayumi's former boyfriend, a motorcyclist named Chōei Mikawa who is also nicknamed "Hotshot", is originally a suspect but produces an alibi for the time of her murder.

Kano, a visiting policeman from Ishigaki Island, is unconvinced by the theory presented by the police and begins conducting his own invasion to find the real criminal.

When Miki Haruno, an aspiring singer, is being held hostage by a crazed admirer near the top of a hotel, Kano uses ropes to rappel down the side of the building and break through a window to rescue her.

Chōei Mikawa poses as a fan and tells her that he knows her secret and attempts to blackmail her but is caught by the club staff and beaten before he is saved by Kano.

He says that Miki Haruno is a persona created by her manager Hidemori, a yakuza from Osaka who put up money for her to get plastic surgery in the United States.

Kano finds Miki and introduces himself as the boy who used to live next door to her in Ishigaki when she was known as Yuna, but Hidemori and his men grab him and beat him, then tie him up.

He tells this information to Hidemori, who reveals that he paid a yakuza to act as the crazed admirer who was holding Miki hostage in order to gain cheap publicity.