Rhyme

Rhyme is a character who appears in Kingdom Hearts 3D: Dream Drop Distance. She appears in Traverse Town.

Development
Rhyme, along with Neku, Shiki, Joshua, and Beat are the first characters to appear in the Kingdom Hearts series who originated from something other than Disney, Final Fantasy, or Kingdom Hearts fiction, although they are from another game that is property of Square Enix, as well as being designed by Tetsuya Nomura.

Kingdom Hearts Dream Drop Distance
She appears in Sora's version of Traverse Town, missing most of her memories and lacking her partner Beat. When the Dream Eater attacks her, Rhyme is temporarily removed from existence by Joshua to save her.

She later appears in Riku's version of Traverse Town, remembering everything about herself and helping Beat fight off weaker Dream Eaters to allow Riku the time needed to slay the Spellican.

Origin
Raimu "Rhyme" Bito is a character from Square Enix's . Sister to Beat, she is partnered with him during Neku's first week of the Reaper's Game. Her hard-working, level-headed attitude keeps Beat's hotheaded, impulsive attitude in check. Rhyme and Neku's team eventually become friends, and they help each other to complete the daily challenges. Tragically, over the course of the Game, Rhyme takes an attack from a Noise that was meant for Beat, resulting in her erasure. Beat then devotes himself to becoming Shibuya's Composer so that he may bring Rhyme back.

Trivia

 * Rhyme's render mimics her pose in one particular cutscene in The World Ends with You where she and Beat erase a Noise.