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.
So I'm going to write a lot of letters!
!لذا سأكتب لكِ الكثير من الرسائل
Darum …
Por eso te voy a escribir muchas cartas.
Te escribiré muchas cartas.
Pleure pas,
tu m’enverras plein de lettres !
तो मैं बहुत सारे पत्र लिखूँगी!
Ti scriverò tante lettere!
Então eu vou escrever um monte de cartas, tá?
Поэтому я буду много тебе писать!