In a world where a swordsman met his end in battle, he is reborn as Fay Hanse Diestburg, the third prince of Diestburg. Known as the Trash Prince for his desire to avoid his sword-wielding past, Fay is drawn back into conflict when a pact forces him to lead troops into war. Witnessing devastation on the battlefield by an immensely powerful being known as the 'Hero,' Fay's dormant warrior spirit reignites upon the loss of a valiant knight. Thus, the tale unfolds of a seemingly lazy prince wielding his sword once more to carve his own legend as the strongest.