S2·E20 All is Lost That is Given to a Fool

Karin, the name of Kochō's guest, finds Shūrei to be quite cute, then leaves when she sees the painting. Shūrei and company find out that the paintings are fake and find counterfeit coins while still in the Kogaro and dashes off to find out who did it with the help of Shin Suou, one of the guys who proposed to her and is also an official. Shūrei and company find a lot of forgeries in the shops around town, while Seiran notices that someone is following them.