This Can't Be Real

There was once a very powerful sword, given to the strongest elf of it's time to protect the land of the wielder. This sword was the most ancient sword, known to have existed before any humans, and creature have set foot on the land. Something very terrible happened though as the sword was now lost. Guardians, knights, citizens even tried to find the sword for centuries, to no success. Now meet Alexa. She doesn't believe in such "fairy-tales" until she herself was thrown back in time. Whatever lies ahead is only for you to find out...