World War Blue
The Hard Wars of Consume
S1 E1:
In the continent of Consume, the Segua Kingdom and the Ninteldo Empire are at war. In the Segua Kingdom, a boy named Gear travels with his friend to the capital, seeking to join the Segua army in order to avenge the death of a loved one. Segua's vice-general, Lumses, tests Gear by pitting him against fifty of her soldiers. Gear defeats them easily with his amazing speed; and Lumses, impressed by the youth's strength, enlists Gear in the Special Forces.