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This article contains details about plotlines described in the anime.
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Cocoa Yazawa (矢澤 ここあ Yazawa Cocoa) is one of Nico Yazawa's siblings.


In Season 2 Episode 4, it was revealed that Nico had three siblings, Cocoro, Cocoa and Cotaro. Like her siblings, Cocoa believed her older sister was the star of μ's.


Cocoa seems more active and energetic compared to the other siblings.


Ep. Title
04 "No. 1 Idol in the Universe"
(宇宙No.1アイドル "Uchuu Nanbā 1 Aidoru")
S2Ep04 00316
In Episode 4, the other members of μ's learned that Nico had two younger sisters and one younger brother, and told her siblings that she was the center of µ's whilst the others were her backup dancers. After some time, Nico arrived and attempted to escape but Cocoa met her in front of the elevator, preventing Nico from escaping. Nico apologized and explained that she was skipping practice to look after her siblings and that she's been telling them that she was a super idol from the beginning.

On the way home, Nozomi Tojo tells the others that Nico was telling her siblings all that even after she failed to become a super idol in her first year because she didn't want their vision of her to be destroyed. After hearing this, the girls arrange for Nico to give a special performance for her siblings, claiming it to be her last performance as a 'solo idol' before joining her fellow idols as equals in μ's.

09 "Melody of the Heart"
(心のメロディ "Kokoro no Merodi")
53 S2Ep09
In Episode 9, the day of the final preliminaries arrives. At Nico's house, Cocoro and Cocoa practiced doing Nico's signature move, "Nico Nico Nii". Nico felt happy and told her two sisters that they'll definitely pass the preliminaries. Nico told her siblings that she'll sing her heart out as center, after all, everyone in µ's is the center.
13 "Come True! Everyone's Dream"
(叶え!みんなの夢―― "Kanae! Minna no Yume")
24 S2Ep13
In Episode 13, Cocoa, along with her mother and siblings, met Honoka Kosaka, Rin Hoshizora, Maki Nishikino, and Hanayo Koizumi at the school gates and attended Nico's graduation ceremony.


  • Cocoa's surname Yazawa means "arrow" (矢) (ya) and "marsh" (澤) (sawa/zawa).
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