Horikawa Mitsuru, a high school student, works at Ryokushou with Itsuka. Seeing the two of them chatting happily together by the sink makes Nagomu feel a little jealous.
While Mitsuru works part-time at Rykoushou to help supplement her large family's finances, she's also actively making music. And her musical activities kick up some trouble.
Oh, what a sneaky way of thinking. 
Who do you take after?
يا لها من طريقة ماكرة للتفكير. بِمَن تتشبّهين؟
Wie gewitzt! Von wem
hast du das wohl?
Pero qué lista eres.
¿A quién habrás salido?
Oh, qué lista eres.
¿De quién lo habrás heredado?
Petite chipie, va !
Tu me rappelles quelqu’un.
Oh, ma senti che furbetta. 
Da chi avrai preso?
Ora ora, que sapequinha! De quem
foi que você puxou esse lado, hein?
Какая смышлёная! И в кого ты такая?