Karakai Jouzu (?) No Nishikata-San

In this spinoff of "Karakai jouzu no Takagi-san", and continuation of "Karakai Jouzu no (moto) Takagi-san", Chi Nishikata tries her hardest to tease her classmate Ooshiro, but for some reason it feels like she's met him somewhere. Can she finally get one over on him and remember her past?