Shouzou and Ine, an old married couple, are known to everyone as a pair of lovebirds. One day, they wake up to find they look like their younger selves! When Mino, their granddaughter, sees them, she's shocked by their transformation, and she's not alone!
Huh? Oh, um, it's popular among 
the boys right now.
.ماذا؟ إنّها لعبة شائعة بين الفتية الآن
Wie?! Äh, so ein Spiel,
das die Jungs grad feiern …
Todos los chicos lo juegan.
A un juego al que juegan todos.
Euh, à un truc en vogue
chez les gars.
Ah, beh, diciamo che è un gioco
 che va di moda tra i ragazzi...
Hã? Ah, é um que anda
bem famoso entre os garotos.
Ну, это для парней игра,
так что…