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...
That's not funny!
!هذا ليس مضحكاً
Willst du mich veräppeln?!
Non è affatto divertente!
Isso não vale!
Ты серьёзно?!