Franz is a once-in-a-century prodigy, a brilliant strategist and a master of both swordsmanship and magic. By the age of eighteen, he has risen to the prestigious position of commander of the Imperial Knights, making him the empire’s most formidable military asset. Despite his rank and power, what Franz truly admires is the life of an adventurer. He has spent years reading novels about adventurers’ exploits and harbors a quiet, persistent dream of one day living that kind of free, roaming life himself.

After contributing decisively to the empire’s complete victory in a recent war, Franz is granted a reward of his choosing. He does not ask for wealth, land, or a higher title. He asks for a long vacation. With that simple request, the empire’s strongest knight sheds his official duties and registers as a rookie adventurer. Setting out to travel the nation, he finally begins the life he has always wanted.

Franz’s journey takes him across the empire, where one encounter after another leads him to resolve the problems that plague the countryside. He clears monster lairs, untangles local injustices, opens trade with beastmen communities, and tackles social issues that the imperial government has overlooked. In later years, his travels will be remembered as the catalyst for the empire’s great leap forward. For Franz himself, however, there is no grand scheme. He is simply enjoying his long-cherished dream of being an adventurer to the fullest, moving from place to place and helping people almost incidentally because his overwhelming strength and sharp mind make it natural. The story follows his unconventional, low-key heroism as he explores the nation he once served in an entirely new role.