Hoshizora Usagi

Hoshizora Usagi (星空ウサギ Hoshizorausagi) is 12 year old cure to likes fairy tales puddings mochas and more sweets and her alter ego is Cure Heartful (キュアハートフル Kyuahātofuru)

Etymology
星空 means starry ウサギ means rabbit or bunny in the english Starry Rabbit

ハートフル means hearful

Cure Heartful
The smiling heart is more fun! Cure Heartful!

笑顔はもっと楽しいです！ キュアハートフル！

Egao wa motto tanoshīdesu! Kyuahātofuru!