Summary
The Sun God Nika is an incredible figure that existed in the world ofOne Piecelong ago and is now resurgent, thanks to Luffy. This figure is known to also have been the Warrior of Liberation who went from place to place, bringing smiles and joy to people’s faces, and of course, freeing them from their misery as well.
Nika is a legendary figure that many have come to worship over the years and it is believed that he had many allies in the One Piece world. In fact, some of the allies of Nika are people that fans have already met in One Piece but were unaware of.

10Samurai Of Wano
Helped Forge The Poneglyphs
The samurai of Wano are certainly allies of Nika. This isn’t a surprise to any fan, given that the Kozuki were themselves responsible for crafting the Poneglyphs. Once they did that, the Poneglyphs were then distributed by Lily and they went to different parts of the world, where they are still protected.
The samurai are directly tied to Joy Boy and Nika, and the fact that Oden wanted to wait for the day Joy Boy returned to Wano just goes to prove that.

9Giants Of Elbaf
Worshippers Of The Sun God
The Giants of Elbaf are yet another group of people who, as fans know,are allies of Joy Boy.These giants are incredibly powerful individuals who, once, were allies of the Ancient Kingdom.
This is evident from the fact that they worshiped the Sun God or, to be more specific, the sun itself. The recent events of One Piece have all but confirmed that the Giants were allies of Nika, the Sun God.

8Kuja
Warriors Bearing The Symbol Of The Sun
The Kuja are a special tribe in the One Piece world who are naturally predisposed to Haki. This is a tribe that has, for generations, kept itself distant from society, specifically men, for many reasons.
The Kuja have not been explicitly confirmed to be Nika’s old allies, however, Luffy, who is the current Nika, is the only man who is an ally of this group, which makes them allies of Nika as well. At the same time, the Jolly Roger Of the Kuja is sun-shaped too.

7Fishmen and Merfolk
Direct Friends Of Joy Boy
The Fishmen and the Merfolk were always allies of Joy Boy. In fact, long ago, during the period of the Void Century, Joy Boy made a promise with the Fishmen and he mentioned taking them to the surface with Noah.
Unfortunately, he failed in the task, however, he did mention that someone would come later down the line and fulfill his task for him. This person is the current Sun God, Luffy.

6Lunarians
Warriors Who Ruled As Gods
The Lunarians are a rather recent race to have been introduced in theOne Pieceworld. This race appears to be near extinction, and King is the only survivor. The Lunarians were staunch believers in Nika, and King himself wanted Joy Boy to come and save the world.
This is somewhat ironic, given that King fought on the opposite side of the Straw Hat Pirates with Kaido. Despite that, however, what fans know for sure is that King and his people were allies of Nika in the past.

5Shandians
Protected The City Of Shandora In The Great War
The Shandians were introduced to the fans very early into the story and it is a fact that they were allies of Nika, the Sun God. This is confirmed in the story as they worshiped the Sun God and prayed to him as well.
Furthermore, the Shandians also fought a battle against the 20 Kings in which Shandora was partially destroyed, around 800 years ago.

4Skypieans
The Skypieans are a race that have always lived on the Sky Islands, unlike the Shandians. They are winged people who, just like the Shandians, have alwaysbelieved in the Sun God, Nika.
In the Skypiea arc, they were seen praying to the Sun God themselves and their prayers were, of course, answered in the form of Luffy, the man who later came to be Nika himself.

3Minks
Close Friends Of Kozuki
The Mink tribe is a special race of humanoid animalsthat exists in the One Piece world. Many believe the Minks to be human, only with more animalistic features. The Minks themselves believe the humans to be lesser minks.
The Minks are quite powerful, known to be warriors from birth. They have the special ability to utilize Electro, and, on full moons, they can transform into a heightened state, called Sulong. The Minks have always been allied with the Kozuki, which makes them allies of Nika as well.

2Nerfertari Family
A Family Bearing The D.
Despite being one of the founding families of the World Government, the Nefertari Family was actually an ally of Nika and Joy Boy as well. This is simply becausethe Nefertari were people of the D themselves.
In fact, Nefertari Lily was the sole reason why the Will of D was carried out to this day as she was one responsible for spreading the Poneglyphs all over the world. Undoubtedly, she was an ally of Nika.

1Buccaneers
The Staunchest Believers Of Nika
The Buccaneer race has been almost wiped outin theOne Pieceworld, with Kuma being the last known survivor.
While that is unfortunate, what fans know for sure is that the Buccaneers were definitely allies of Nika. In fact, Nika himself could have been a Buccaneer. They have a deep knowledge of Nika, which no other race in the One Piece world possesses.