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...
old cell phones with all 
those buttons can't do!
que los viejos teléfonos celulares con 
todos esos botones no pueden ejecutar!
que os celulares antigos com 
um monte de botões não possuem!