Manatsu meets a new friend, ninth-grader Asuka Takizawa, and she and her friends decide to try recruiting her to become the fourth Pretty Cure, owing to Asuka's physical strength. However, Asuka is not interested, much to their chagrin. Meanwhile, Sango and Manatsu struggle to get their club started, with the issue compounded by the fact that there were very few clubrooms left. Asuka arrives to help them, though she does not intend to join their club. Later that day, Minori, Manatsu, Asuka and Sango clean up a packed room to use for their club, during which, Laura compliments Asuka and points out the latter's strengths. As such, Asuka, despite not truly believing in teamwork, begins to warm up to the others. Suddenly, Numeri appears and summons a Yaraneeda from a totem pole in the garbage. Manatsu, Sango and Minori to transform to engage the enemy but the monster proves to be a formidable foe and overpowers all three Cures and Laura. Asuka, alerted by the Yaraneeda's rampage, intervenes, resolving to protect her friends. As a result, the fourth and final Tropical Pact grants Asuka the power to become Cure Flamingo. All four Cures and Laura work together to defeat the Yaraneeda, with Cure Flamingo finishing the monster off. Afterwards, Asuka decides to believe in teamwork again, befriends the group and joins their club.