Hero? I've Long Stopped Being One - Volume 1 Chapter 5

The Gura Gura no Mi is known as the strongest fruit in the world of one piece.

The queen’s essential feature is this: [must be a woman or a feminine-looking man].

Zhang Gong decides to learn light magic, a magic few show interest in and eventually becomes the legendary Grand Magister. While trying to end the continent’s east and west separation in order to unite all of the different races, he becomes every race’s Child of Light.