Kagura has gotten fat because of her recent degenerate lifestyle. She goes to Otae for advice, but Otae has also gotten fat from eating too much ice cream. Satchan laughs at the both of them for becoming fat, but she has also gotten fat… The three spurred to do something about their situation. They join a famous fasting dojo in town. There they run into Otose, Catherine, and even Kyubei…
My plan was based on the fact that the six of us had formed
Mi plan se basaba en el hecho de que 
las seis habíamos creado un vínculo
Meu plano é todo baseado 
na amizade que formamos