Swordsman on the Eternal Journey

Let's go on a journey to break the lewd demonization curse placed on the main character, Mr. Swordsman.

A swordsman who was a soldier in the royal capital on the northern continent, but was cursed by the "Demon Lord," a powerful demon, to become a lewd demon. During his wandering journey, he received a blessing from the spirit of the fountain and was able to control the curse to some extent. In order to completely break the curse, he sets out on a journey.