本庁の刑事恋物語5（前編）

Takagi and Sato are on a date at Tropical Island while the Tokyo police force try and prevent Takagi from making a move with Sato. Later, the Detective Boys are bought up and Takagi and Sato are forced to watch over them. Later Takagi's bag with a wedding ring in it is switched, and Takagi finds out he has a bag of cocaine.