After graduating from the Academy, the protagonist meets "Lux", a mysterious woman who is being attacked on the way to Prontera, the capital of Rune-Midgarts.

She is there to deliver a letter with "a serious secret that will shake the kingdom". To help Lux, The protagonist decides to deliver the letter on her behalf.

What are the secrets that will shake the kingdom? And what is the purpose of the group that attacked Lux? These are the questions that will guide this adventure.