Tower Dungeon

A wicked sorcerer has murdered the king and carried the princess Ignelia off to the "Dragon's Tower," a structure which came down from the sky. The Royal Guard Battalion attempts to rescue the princess, but to little avail. Yuva, one of the men conscripted to relieve the wounded troops, goes with the battalion on account of his unnatural strength to take on the tower. (Source: Kadokawa, translated)