I transform into a demon sword

The protagonist transforms into a magical sword and embarks on an adventurous journey alongside several generations of wielders. This enchanted sword possesses limitless potential, capable of harnessing the power of destruction. Through cooperation and conflict with its past wielders, they will explore uncharted territories, unlock the sword's secrets, and face unprecedented challenges. It's a story about power, destiny, and courage. The main character will continually grow, challenge themselves, and ultimately unveil the true potential of the magic sword.