Isumi Saginomiya and Sakuya Aizawa are Nagi Sanzenin's childhood friends. All three young ladies were born into wealthy families and grew up together, but they all envy something about each other. Episode 
4 illustrates the irreplaceable days of interaction and horseplay between these Cutie Mates. The world 
is full of all kinds of new meetings...
Sakuya-san, at least put something 
on before you call me.
Sakuya-san, al menos póngase 
algo antes de llamarme.
Sakuya, ao menos vista alguma 
coisa antes de me chamar.