After a certain boy woke up, he unexpectedly became the eldest son of a marquis in the Western Middle Ages who was knocked unconscious for stealing a bear egg. This coincided with the transition between the old and new forces in the Ostarn Kingdom. As the loser in the struggle, how should Levi face this treacherous situation? How should we complete the great cause we have acquired? There must be a road before the car reaches the mountain. Go ahead, Levi!
Demihumans, elves, vampires? Take them all!