The hot, hot summer of Tajimi has arrived, and Himeno, Mika, Naoko, and Touko have a blast in the river trying to catch eel!
Then suddenly a kappa appears before them and takes them down to Ryūgū-jō.
Inside Ryūgū-jō, a certain person in the form of their high school self is awaiting them...
I'm not going to lose!
!لـ-لن أخسر
I-Ich geb mich nicht geschlagen!
¡No perderé!
¡No pienso perder!
Pas question que je perde !
N-Non perderò!
E-Eu não vou perder!
Я не проиграю!