Nika

Nika was a legendary, possibly mythical warrior that was once revered as the Sun God by slaves from ancient times.

They were first mentioned by Who's-Who, who heard about the legend from a prison guard during his imprisonment.

Appearance
Based on their single, silhouetted appearance, Nika seemed to be a lanky, warrior-like figure with noodly limbs and flame-shaped hair.

Personality
According to the legend heard by Who's-Who, Nika was a heroic, benevolent figure who was friends to slaves. It was said that Nika would one day come for the slaves to liberate them and bring smiles to their faces.

Powers and Abilities
The legend states that Nika was a warrior of legend. In their silhouette appearance, they were seen holding a sword and a spear.

Legend
Nika has been worshipped since ancient times by slaves that believed Nika would eventually come to liberate them from their suffering. It is, however, unknown if such a figure actually existed or not.

Who's-Who, a former member of CP9 who was once imprisoned for failure, heard about the legend from an unnamed prison guard and then started giving his prayers for Nika with the intent of easing his own suffering. When Who's-Who noticed that the same prison guard who told him about the legend suddenly vanished from duty, he suspected that the story was not meant to be shared and that the World Government had done something to the guard. He then decided to break out of prison in order to escape a potentially worse punishment for knowing too much.

Who's-Who mentioned Nike to Jinbe during their fight, as the former associated the Fish-Men race with slavery, and asked Jinbe about the legend. Jinbe did not replay to Who's-Who, and was angered with the assumption of the relationship between the Fish-Men and slavery, so after defending from Who's-Who attacks, delivered a critical blow upon him

Trivia

 * The concept of a Sun God is very common across several real world cultures. Because of the sun's importance to life as a whole, most solar deities were often recognized as symbols of power and prosperity.
 * Some cultures within the world have been shown worshiping the sun or a deity related to it:
 * Mousse of the ancient Shandia tribe from 400 years ago once mentioned that she would "meet the sun god" after her sacrifice.
 * Otohime, the deceased queen of Fish-Man Island had a profound admiration for the sun, frequently using it as a symbol that Fish-Men and Merfolk had to strive for.
 * The Giants of Elbaf celebrate the death and rebirth of the sun through the Winter Solstice Festival.