CHIN's

With evidence from the bag and elimination, they are able to track down the culprit and arrest him but Takagi's bag is lost in the ocean in the process.

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.