Seven Heroes of the Nine Realms

The eunuchs were in the local area, holding the emperor hostage to order the princes. Save the people of Dawn from water and fire, and travel between rivers and lakes. There are knights and knights here, as well as oriental fantasy. Why are there only seven heroes in the nine realms of the imperial capital instead of nine? Who are the Seven Heroes? Ask if there are any heroes among girls? Please taste it slowly.