Though Momo-kun and Kurihara-san have officially begun dating, Kurihara-san is still up to her usual antics such as lying in wait for Momo-kun and holding onto his straws after he's finished using them. While she finds her behavior exasperating, her friend Mizuyama Norika warmly watches over her. Meanwhile, Momo-kun begins to grow curious over Kurihara-san's strange words and behavior...