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|Affiliation||Four Star Academy|
|Anime||A Small Radiance|
Kokoro has fuchsia feminine eyes and short hair with streaks of pink and shoulder length curled forelocks. Her bangs are in three thick sections, two of which are dyed entirely pink. She wears a pink bow with white hearts on it.
Kokoro is a friendly person who gets along well with her fellow classmates.
Momoi (桃井) Momo (桃) means peach, and oi (井) means good (well).
Kokoro (こころ) means heart.
- She is good at magic tricks.
- She shares her voice actress with Mei Kashiwazaki.