The PreCure(Pretty Cure) 10th series "Doki Doki! PreCure"(Official WEB Site), the first episode was broadcasted on first week February in Japan. "Doki Doki" means an onomatopoeic expression that a heart is beating in Japanese.

Symbolically, a heat beating evokes an expectation to dramatic meeting with a new person, a new character, and sometimes a new fairy tale.³ɤ