In a world where extraordinary powers called " Beneïsons " govern everything; only a boy named Kleis was granted the gift of the " Seint Graal ", a power whose use he could not even understand. <br><br> Despite this, he did not lose heart and formed a party with his childhood friend Hinoka, who possessed the beneïson of the " Seint de l'Espee ", to carry out guild missions. However, due to a minor misunderstanding and betrayal, his mind and body were shattered. <br><br> At the same time, Kleis' beneïson revealed its true potential. The " Seint Graal " was the pinnacle of power, capable of granting any beneïson in existence to himself or others. <br><br> Having lost everything, yet now holding the power to gain everything, what will he choose? The end of the world or something else?