Keiti runs into a 5th-grader named Bianka Midori, who is very clumsy. Keiti then notices her necklace, and tells her that she's a Rainbow Princess. However, Bianka refuses to believe her at first. However, Bianka's best friend, Anjera, gets attacked by a Shadow Creature, so she unknowningly removes her necklace and transforms. Then, Keiti and her friends show up to help fight, with Keiti saying "I told you so" to Bianka. The Rainbow Princesses defeat the shadow, and Bianka joins the team.