Happy Around! decides to challenge rap following Rinku's idea, 
However, Rinku and Muni becomes estranged due to misunderstanding.
Seeing Maho and Rei worried, Airi steps in to give them advice.
Sis's friend?
صديقة أختي؟
Eine Freundin?
¿Amiga de Maho?
¿Eres amiga de Maho?
बहन की दोस्त?
Un'amica di nostra sorella?
Amiga da minha irmã?
Сестрёнкина подружка?