Ep. 3: Rikka obtiene el poder de transformarse en Cure Diamond con la ayuda de Raquel

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In the Science Lab,as Rikka tries to determine the secrets behind the Cure Loveads, Raquel suggests that she might be able to become a PreCure herself, though Rikka doesn't feel like she has the potential to become one. Upon returning home, Rikka receives some souvenirs from her travelling father and writes him a letter back. The next day, Mana and Rikka run into the shopkeeper who gave Mana the Cure Lovead, who gives Rikka a Lovead of her own, which she is reluctant to accept as she suspects that there is something fishy going on. Meanwhile, Ira targets another citizen who is sore about not receiving any letters and creates a goat-like Letterbox Jikochu, who starts chewing up everyone's letters. As Mana takes a beating trying to protect Rikka's letter to her father, Rikka concentrates on her feelings of friendship with Mana and gains the power to transform with Raquel to become the PreCure, Cure Diamond, defeating the Jikochu with her purifying attack, Twinkle Diamond. Following the battle, as the girls realize that they have lost Lance, they are approached by their friend from elementary school, Alice Yotsuba. (Source: Wikipedia)