|The Heart That Believes|
|Air Date||October 4, 2003|
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The Heart that Believes is the twenty seventh episode of Mermaid Melody Pichi Pichi Pitch.
The purple mermaid introduces herself as Caren, the mermaid princess of the Antarctic Ocean and younger twin sister to Noel, whom Rina was with when she was captured. Rina then experiences a guilt trip as she remembers how she was forced to abandon her friend when Gaito attacked. The Black Beauty Sisters are introduced.