The mystery behind Gear Five's white coloring in One Piece may have been explained in a recent volume cover. The distinct shading on Luffy in Gear Five resembles refracted light, suggesting he may be made of light itself. This ties into the theory that Nika, representing sunlight, could be Gear Five's true form. This connection may also explain how Gear Five awakened the Iron Giant on Egghead. The anime provides further evidence with Luffy glowing white in battle. Additionally, Vegapunk's quest for abundant energy could point to solar power as the Ancient Kingdom's mysterious power source, possibly linked to Nika. Despite these hints, many mysteries surrounding Gear Five and Nika remain unexplained, promising more surprises in the Final Saga of One Piece. One Piece can be read on Manga Plus and Viz Media.