Sekine invites Chiyo to a sleepover at her house, and the other two invite themselves as well. They deepen their bond while Rikka learns more about the quirky cultural activities that take place on Earth.
Just in case, I'll ask, 
what did everyone put in?
Nur zu meiner Information:
Was habt ihr in die reingetan?
Lo preguntaré por si acaso:
¿qué le añadieron?
Lo preguntaré por si acaso:
¿qué habéis añadido?
Je vous demande au cas où,
mais vous avez mis quoi, dedans ?
Per sicurezza, vi chiedo,
cos'avete messo dentro?
Só pra saber, o que vocês colocaram?
Спрошу на всякий случай,
что вы туда положили?