At the Beginning, My Soul Turned into a Female Sword Fairy, and the Sword Fairy Came into the World for Me.

When I woke up, I exchanged souls with my "Electronic Sword Fairy Pet". She took over my body, and in the city where spiritual energy was revived, she used a wooden sword to become a "student sword fairy". I carried her identity and relied on the weird system of "the more I get beaten, the more I upgrade" to survive in the dangerous fairyland. One of us is invincible in the city, and the other is unstoppable in the fairyland.