Aizen

This is a fantasy world, and the races are dwarves, humans, elves, and water people. Each race has a country, and Aizen is a warrior born in the country of dwarves. Adventurers are ranked platinum, gold, silver, bronze, carnelian, iron, and white from the top, platinum is the rank of warrior, gold is the rank of first-class, and the end of the line as an adventurer is silver, and he is a silver-ranked adventurer.