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.
I get it! It must be something similar 
to Hot Pot for the Revolution!
Es muss etwas Ähnliches sein
wie Revolutions-Nabe!
¡Debe parecerse
al Guiso Revolucionario!
¡Debe de parecerse
al Guiso Revolucionario!
Comme la fondue-révolution !
Ci sono, deve essere simile
all'hot pot per la Rivoluzione!
Já sei, é algo como o
Ensopado da Revolução!
Видимо, как для
Революционного набэ!