Mello materializes as a mysterious woman formed of bright light, visiting the orphaned Tetsuro Daiba amid the chaos following Earth's meteor impact and takeover by traitor forces. Her sudden manifestation to the suffering Daiba marks the beginning of his journey. Later, after Daiba and Rei Yuuki are captured by Queen Photon, the traitor ruler claiming to save Earth, and escape her sealed chamber with telepathic feline aid, Mello intervenes to clarify the situation. Her appearance delivers crucial information, helping Daiba and Yuuki grasp their circumstances and choices. Mello possesses distinctive physical traits, including voluminous, lengthy blonde hair that conceals numerous miniature, potato-headed men, enhancing her enigmatic presence. She presents Daiba, Yuuki, and the cat with their pivotal choice: remain on an Earth unable to sustain their advanced race or venture into the unknowns of space. Her guidance directly shapes their ultimate decision about their future path.