Koizumi Ayaka (小泉あやか Koizumi Ayaka?) is the main Pretty Cure to fight in Tokyo, Japan. She is the Pretty Cure of Tokyo and looks up the Happiness Charge Pretty Cure. Ayaka has a loving personality and is the Miko at Kiseki Shrine. Her alter ego is Cure Sakura (キュアサクラ Kyua Sakura?), the Pretty Cure of flowers. She is represented by flowers.
Ayaka is a lovable girl who is caring and has a strong love for Cherry Blossoms. Despite being a second year student at Sora ni Kiseki Public Middle School, she is also a Miko at Kiseki Shrine and is very polite and graceful as a Miko. When not being a Miko, she bright, caring and always protecting others, from strangers to enemies. She is an only child and has a strong sense of justice.
- Petal - Ayaka's fairy partner and mascot.
Cure Sakura means cherry blossom, which is a pink flower found on trees.
"A single flower blooming towards the future! Cure Sakura!"
Mirai ni Mukatte Saku Ichirin no Hana! Kyua Sakura!
Cure Sakura (キュアサクラ Kyua Sakura?) is the Pretty Cure alter ego of Ayaka.
Ayaka's voice actor, Shimoji Shino, has participated in several image songs for the character she voices.
- Ayaka is the first Pretty Cure to have a Japanese Cure name instead of an English one. This may be because she comes from Japan and has a love for Cherry Blossoms.
- Despite being from the Happiness Charge! universe, Cure Sakura's introduction phrase ends with "ichirin no hana" like the Heartcatch Pretty Cure's individual introduction phrase.