Well it tells the story of Asean's past

Asean : Rika let's play!

Rika : Sorry but I'm busy

Rina : Come here, just play with me, little brother

Asean : ok sis

In Rika's heart : Ugh Disgusting

Asean and Rina Play on the field

Rina : How do you feel now?

Asean : I like playing

Rina : Laugh Aw you are so cute/funny

Asean : ^^