In a territory shrouded in strange rules, pharmacist Moon accidentally encountered a loophole in the rules and became a special being who could prepare game-breaking potions. He encounters Marquis Heron who is hiding in the dark, and the two join forces to fight against the strange rules that dominate the territory, crushing all the monster bosses hiding in the dark, relying on exclusive potions to tear apart the layers of blockades of the monster, and finally regain the normal order of the territory.
