Far from the battlefront and the dangers of demons near the borderlands of Zoltan, Red, a D-Rank adventurer, has finally realized his lifelong dream of owning an apothecary and living a peaceful life in the countryside through his own hard work. His quiet days are disrupted when Rit, a princess of the Duchy of Loggervia and a fellow adventurer, abandons her royal responsibilities to become his live-in partner and assistant. Though Red appears honest, kind, and well-liked by everyone, he shares a hidden history with Rit: he is actually Gideon, the older brother of Ruti Ragnason, the Hero. After their campaign against the Demon Lord ended, Ares Drowa, the Sage, kicked Red out of the Hero's party, deeming him too weak and unimportant to stay. Despite leaving the party to start a new life with Rit, Red's past refuses to fade away and continues to haunt him.