ASL Brothers Theory: Sons of the Moon God?

In the Final Saga, Oda has been systematically peeling back the mysteries of the Void Century — but one detail hiding in plain sight may connect the Moon People, a legendary god, and three very familiar faces. If this theory is correct, the three figures depicted in an ancient mural aren’t just random moon dwellers: they are the divine origin point of Luffy, Ace, and Sabo’s shared fire-based powers, and the story has been foreshadowing it on the walls of history all along.

The Theory

The theory centers on the mural imagery seen in connection with the Moon People’s lore: three figures with lower bodies that feature a distinctive triple-circle motif (ド三つ — three circles), who came from the moon to the Blue Planet and tearfully said their farewells. The theory posits these three were “sons of the Moon God,” and their spiritual or literal descendants are the three brothers of the ASL trio — each of whom commands flame. The stakes are enormous: it would mean Luffy, Ace, and Sabo’s bond isn’t merely chosen brotherhood, but a destiny written in the stars — literally.

Evidence from the Manga

1. Chapter 470 / Skypiea Moon Murals: The ruins on Skypiea’s moon (and later confirmed in Chapter 470 and Enel’s cover arc) depict three distinct tribes of Moon People — the Shandians, Skypieans, and Birkans — who descended to the Blue Star. The mural groupings consistently appear in threes, establishing the “trio” as a sacred structural unit among the moon’s people.
2. Chapter 1066 (Ohara Flashback / Vegapunk’s Revelations): Vegapunk confirms that the ancient people of the moon were technologically advanced and traveled to the Blue Planet in search of energy resources. They wept as they parted — a detail that mirrors the theory’s emphasis on the tearful farewell of the three mural figures. The emotional weight of that separation implies these three individuals held special significance.
3. Chapter 1095 — Nika / Sun God Connection: The Sun God Nika is described as a liberating figure worshipped by enslaved people across the world. The moon and the sun are repeatedly framed as cosmic counterparts in One Piece’s mythology. If Nika (now embodied by Luffy) has a lunar parallel — a “Moon God” — then that deity’s three sons forming a fire-wielding trio becomes thematically coherent within Oda’s celestial framework.
4. ASL Brothers — All Fire Users: Monkey D. Luffy wields Gomu Gomu no Mi / Hito Hito no Mi Model: Nika (which generates heat and friction-based energy), Portgas D. Ace wielded the Mera Mera no Mi (flame), and Sabo currently wields the Mera Mera no Mi (flame, inherited from Ace). Three brothers — three flames. This is statistically and narratively unlikely to be coincidence in a manga as meticulously planned as One Piece.
5. The Mysterious Bag: The theory flags a bag visible in the mural that allegedly appears elsewhere in the story in a recognizable form. Recurring visual motifs (like the Poneglyph shape or the Nika silhouette) are among Oda’s most reliable foreshadowing tools. A bag linking moon iconography to the ASL brothers would be a classic Oda visual echo.

📌 Key Evidence: All three ASL brothers are fire users — Luffy (heat/friction via Gear 5), Ace (Mera Mera no Mi), and Sabo (Mera Mera no Mi). In a story where Devil Fruit abilities are deeply tied to destiny and lineage, three unrelated-by-blood brothers all independently converging on fire-based powers is one of the most compelling unexplained coincidences in the entire series.

📌 Key Evidence: Vegapunk’s Chapter 1066 revelation that Moon People descended to the Blue Star seeking energy resources — and cried upon separation — directly parallels the emotional and functional description of the three mural figures. “Energy resources” and “fire” are conceptually intertwined, reinforcing a lunar-fire connection.

Our Analysis

What makes this theory compelling beyond its surface pattern-matching is how deeply it fits Oda’s established cosmological framework. One Piece has always been a story about cycles — Joy Boy’s will reincarnating in Luffy, the Mera Mera no Mi passing from Ace to Sabo, ancient kingdoms falling only for their ideals to resurface centuries later. If the Moon People mythology operates on the same cyclical logic, then the tearful three-figure farewell in the mural isn’t just backstory — it’s a template that keeps repeating. The ASL brothers’ tragic separations (Ace’s death, Sabo’s amnesia, Luffy’s constant near-losses) become echoes of a cosmic grief that began on the moon itself.

The fire connection deserves particular scrutiny. Luffy’s Gear 5 generates friction-based heat and is associated with the Sun God Nika, while both Ace and Sabo wielded literal flame. Oda rarely gives three characters the same elemental affinity without intentional design. The more interesting question the theory raises is whether this is genetic/lineage-based (meaning their bloodlines literally trace back to moon figures) or whether it’s destiny-based (meaning the universe keeps producing three fire-wielding liberators as a cosmic necessity). The former would have massive implications for the world-building; the latter would be a profound thematic statement about freedom being an unstoppable, recurring force.

The main counter-evidence is the lack of a confirmed “Moon God” in the text. We have the Sun God Nika clearly named, and lunar imagery is abundant, but a named lunar deity with three sons remains speculative. Additionally, Luffy’s fire isn’t technically elemental flame — it’s Nika’s rubber-based heat — which slightly weakens the clean “all three are fire users” argument. However, thematically and visually, Oda clearly presents all three brothers as flame-associated, and the mural’s bag motif — if confirmed to reappear — would be the kind of smoking-gun visual evidence Oda loves to plant decades in advance.

Theory Credibility Rating

The thematic and visual parallels between the three moon mural figures and the ASL brothers are genuinely striking and worth taking seriously, but the theory currently lacks a confirmed “Moon God” in the text and relies on the bag motif being verified — keeping it in intriguing-but-unproven territory until Oda reveals more of the Void Century’s celestial mythology.

Source: https://www.youtube.com/shorts/WwhmS1I30uw