Dera’s weight has ballooned out of control, causing the girls to take drastic measures to slim him down. This includes bringing him to school to keep him from sneaking food, so Choi decides to tag along.
After months with no communication, Dera receives a visitor from back home. Afraid of the repercussions of his failure, Dera leads her to believe he’s being held captive by Tamako and her family.
An evil curse has fallen on the shopping district and the residents of Bunny Mountain scramble to protect Tamako at any cost.
It’s Summer and Mochizou is getting overwhelmed by his feelings for Tamako. With Dera’s help he tries to get closer to her on the school trip, but the situation gets complicated once Midori catches on to his plan.
It’s festival season at Bunny Mountain and the shopping district is as busy as ever. Anko isn’t nearly as enthusiastic about it as her big sister though, and would rather be off on a museum trip with her friends than help at the shop.
Dera becomes smitten with Shiori, one of Tamako’s new classmates that she recognizes from the badminton club. He brings Shiori to the shopping district, but her shy personality makes it hard to connect with Tamako.
Valentine’s day is approaching and the Bunny Mountain Shopping District (yes, they apparently live on Bunny Mountain) brainstorms ideas for the occasion. Tamako herself seems to have a few admirers but who will she give her chocolate to?