Legend Zorro, whose born name was Don Diego, is a legendary character from old stories, known as a dashing vigilante who protects the innocent, punishes corrupt organizations, and helps the oppressed. As a Legend of Mythos, he is a powerful and sentient spirit who currently resides in a single, torn piece of paper from a LegendKeeper, which is kept by his new partner, Laelia de Fermat.

Zorro embodies the archetype of a charismatic and theatrical hero. He materializes as a cloaked, masked figure exuding an air of mystery and a self-assuredness that borders on arrogance. His voice is described as a "low rumble, smooth and dangerous like velvet, but with the sharp edge of a blade," and he often speaks with a mischievous and playful tone, enjoying witty banter and dramatic flair.

True to his origins as a protector of the oppressed, Zorro's core values remain intact even though he has forgotten much of his past plane of existence. He firmly believes in being "Better than their enemy," viewing killing as an absolute last resort.

His commitment to justice and aiding others is so strong that he willingly put his own personal quest to find his forgotten home on hold to help Laelia investigate a dangerous conspiracy involving her family, recognizing that the threat was 'far more interesting' and too important to ignore. Despite his theatricality, Zorro possesses a sharp, analytical mind and can be a source of profound wisdom and empathy.