Gotokuji, Miyako also know to her alter ego as Rolling Bubbles, is a cute and kind member of the The Powerpuff Girls Z and is one of the main characters. She originated from the show the Powerpuffgirls and has been adopted by the Japan, Toei Animation. The original creators of the characters and the show  is Craig McCracken. From the The Powerpuff Girls Z, she is represented as Bubbles and her weapon is a Bubble Wand. 

Miyako in Powerpuff Girls Z is quite mature, as she act as a mother towards Ken. She is also the dizziest member of the group, who often appears to be a bit clueless, and seems to not completely understand her powers, along with a few other things. She is very friendly and polite, but like the other two girls, can get mad when provoked, and disapproves of crying to get what she wants. She is has experienced in doing chores such as cooking and cleaning, thanks to her grandmother. However, she seems to spend too much time on accomplishing these tasks well. She is also popular with many boys at her school where many of them has a crush on her but she just ignore this because she has already has feelings for someone special (Takaaki). Just in the regular show, she has her innocent and gentle personality, and has a love for animals as well as her doll, Octi.

Miyako also has a taste in fashion, where she often buy or search many cute dress in computer and store. It's often said that this is the reason she has a lot of boys crushing on her. But as stated, she does not show any interest, being already in love with Taka-chan, a boy she met when she was six and had a crush on since. Her love of fashion was demonstrated pretty early on, when she spent a few minutes at the beginning of the episode shopping, and in another when Sedusa was making a mess in a clothing/beauty store and was spending time picking up all of the outfits that were being thrown about.