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.
It's something girls are always 
getting together to do.
È una cosa che fanno spesso le ragazze
quando si riuniscono.
Parece que é algo bem comum
de se fazer quando garotas se reúnem.
Девушки часто собираются
и проводят так время.