She is voiced by Kikuko Inoue.
Melora is the princess of a far away planet called Mel. She is the galactic guardian of something the people from space call the "Rainbow Bell", an object which shines with all the colors of a rainbow. It is said that as long as the bell rings, there will be peace in the universe.
During the events of Detana!! TwinBee, the evil Dr. Warumon manages to steal the Rainbow Bell in his quest to conquer the universe, and without its power, the princess slowly begins to fade away into nothingness. With her last ounce of strength, she sends a distress signal to TwinBee.
At the end of the game, she gives a thank-you message, informing the TwinBee Team that her planet is once again safe.
Melora also made an appearance in TwinBee Taisen Puzzle-Dama, appearing as the boss of the final stage. She greets the player telling them she will test them if they are worth to be granted with the Super Bell.
She also has appeared in other games and media, and some artworks depict her as being very good friends with Light, Pastel, and the rest of the TwinBee Team. She is frequently portrayed with them partaking in casual outdoor activities which somehow contrast with her monarchic status, as well as her figure of galactic protector.
Melora has long green hair and blue eyes, and wears a long white dress with red ribbons.