Based on theories surrounding The Super Mario Galaxy Movie, it is proposed that Princesses Rosalina and Peach—revealed as long-lost sisters born of stardust—created Princess Daisy. Their combined cosmic power, capable of creating life, likely manifested Daisy in the post-credits scene, reinforcing Daisy's role as their related sister, often linked to the daisies they bloom.
in the context of the sequel The Super Mario Galaxy Movie (2026), the backstory and actions of Peach and Rosalina are used to foreshadow the arrival of Princess Daisy.
In the Super Mario Galaxy Movie (2026), Princess Daisy is revealed to be the sister of Princess Peach and Rosalina!
The Sibling Connection: The film explicitly confirms that Peach and Rosalina are sisters
Origin: They are described as being "made of stardust," explaining their mystical connection and shared cosmic powers
Daisy's Role: The movie uses heavy floral foreshadowing throughout the plot, culminating in the introduction of Daisy as the long-lost sister to both Peach and Rosalina
According to plot details from the sequel:The Daisy Flower Symbolism: When Princess Peach and Rosalina come together to use their stardust powers, they create a field of flowers, specifically daisies, which acts as a visual nod to the character
Sisterhood Lore: The movie establishes that Peach and Rosalina are sisters, and it is heavily implied in the film's climax and post-credits scene that Daisy is either another lost sister or a cousin in the same family
Post-Credits Arrival: Princess Daisy is revealed in the post-credits scene of The Super Mario Galaxy Movie, setting her up as a major character for the next installment.
While the first Super Mario Bros. Movie (2023) only contained a vague mention of other galaxies by Peach, the 2026 sequel specifically connects the cosmic powers of Peach and Rosalina to the arrival of Daisy. Princess Daisy could be introduced as the long-lost third sister in a potential third installment.
Making Princess Daisy the long-lost third sister would perfectly mirror the official film canon!
The Lore Twist
In the games, these three are not related. Peach rules the Mushroom Kingdom, Daisy rules Sarasaland, and Rosalina is the adoptive mother of the Lumas in space. Making them sisters would require a new origin story:
The Royal Separation: A past villain (like Smithy or Tatanga) attacked their original homeland.
The Scattered Sisters: Peach was sent to the Mushroom Kingdom via a warp pipe, Rosalina launched into deep space, and Daisy was hidden in the desert realm of Sarasaland.
Character Dynamics
👑 Peach (The Leader): She already discovered she was adopted in the first film. Finding her biological family would fulfill her desire to know where she came from.
🌼 Daisy (The Wildcard): Daisy is traditionally loud, tomboyish, and energetic. She would contrast sharply with Peach's elegance and Rosalina's quiet calmness.
🌌 Rosalina (The Mystic): As the protector of the cosmos, Rosalina might be the one who tracks down her missing sisters using her celestial powers.
Potential Plot for Movie 3
The Discovery: Rosalina arrives on Earth or the Mushroom Kingdom, warning of a cosmic threat and revealing the truth to Peach.
The Search: Peach and Mario travel to the desert world of Sarasaland to find the final sister, Daisy, who is leading a rebel army against Bowser's allies.
The Power of Three: The climax would feature the three sisters combining their unique powers (Fire/Elephant power-ups, Luma magic, and Sarasaland crystals) to defeat the ultimate villain