While the power of the Sun God Nika within Luffy is shaking up the main storyline, the mural in One Piece chapter 1138 has just opened a new Pandora’s box. Beyond Nika, Oda has officially named six mysterious ancient entities and legendary creatures, paving the way for some of the most mind-blowing theories about the world’s origins.
1. Sun God of the First World

We know Joy Boy is the Sun God of the Second World, and Luffy is the Sun God of the Third World. So who is the first entity that appeared in the First World? Most hardcore fans agree this is the “original Nika”, the primordial god behind all legends before this power became a Devil Fruit.
2. Earth God
According to the ancient mural, the Earth God furiously opposed the arrival of the Sun God. This deity, along with the Hellfire Serpent, plunged the entire First World into darkness and destruction. This could be a key clue to unraveling the lost history before the Void Century.
3. Hellfire Serpent

Alongside the Earth God is the Hellfire Serpent, a giant snake that breathes flames destroying all life. This image appeared directly on the mural in chapter 1138. Many theories suggest this serpent is not a natural creature but an ancient ultimate weapon controlled by the Earth God to purge the world.
4. Forest God

The mural depicts the Forest God as an entity capable of taming and controlling demons. This detail sparks two shocking theories. Could the taming of demons be the origin of Devil Fruits? Or even more terrifying, is the Forest God actually Imu, with the “demons” under control being the Five Elders, shapeshifters whose Devil Fruit names Oda has never revealed?
5. The Moon People

The Second World records the appearance of “Moon inhabitants.” This matches perfectly with Enel’s discovery that the ancestors of the Birka, Shandia, and Skypiea tribes originally came from the moon. Even King’s Lunarian race might belong to this ancient group of migrants.
6. The Half-Moon Tribe
This is the most ambiguous and intriguing concept in chapter 1138. What does “Half-Moon” mean here? Could it refer to children born from Earthlings and Moon people? If so, this might be the ultimate answer to the origin of the D. Clan, “God’s enemy,” with the letter D shaped like a crescent moon!