Ars Forlese, who was a magician in the hero's party, was expelled from the hero's party. Ars contributed the most to the party by using magic granted, but He didn't acknowledge Ars' contribution to the party members, partly because it was a skill that was difficult for him to notice. He can actually use weakening magic, and by applying buffs and debuffs, his attack magic and swordsmanship are top-notch... And so, Ars decides to embark on a new journey as a new adventurer!!