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...
No doubt about it, this is Ryūgū-jō!
!إنّها ريوغوجو بلا شكّ
Ohne Frage, das ist der Drachenpalast!
¡Sin duda es el Palacio del dios dragón!
¡Se nota que es
el Palacio del dios dragón!
Aucun doute, c’est le palais Ryûgû !
Non c'è alcun dubbio, è il Ryūgū-jō!
Mas não há dúvidas,
é o Castelo Ryuuguu!
Это настоящий подводный дворец!