Mayumi Dojima gazes at the stars from the rooftop of Yubiwa Academy Middle School.

The members of the Pretty Boy Detective Club: Manabu Sotoin, Nagahiro Sakiguchi, Michiru Fukuroi, Hyota Ashikaga, and Sosaku Yubiwa, along with Mayumi Dojima, visit the location where she saw the lost star ten years ago.

Mayumi Dojima and Manabu Sotoin are abducted by a group that call themselves the Twenties.

The Pretty Boy Detective Club obtains an invitation to a mysterious casino called Reasonable Doubt.

Nagahiro loses to Lai, but the Pretty Boy Detective Club figures out the trick that Lai used to win.

During the renovation of the Pretty Boy Detective Club headquarters, the team finds thirty-three paintings in the attic.