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.
A duet?!
غناء ثنائيّ؟
Ein Duett?
¿Dúo?
-¿Un dueto?
-Sí.
En duo ?
- युगल गीत!
- हाँ।
Un duetto?!
Um dueto?!
Дуэт?