To save a man attacked by a demonic spirit from Deskrom, a warrior with green hair and pure eyes appears—Sailor Mint. She moves swiftly, defeating monster after monster with grace and strength. Her gentle yet fearless demeanor brings comfort to the man. However, when he is injured by a demon's attack and begins to collapse, Sailor Mint quickly rushes to support him. At that very moment, a new demon appears. Distracted by battle, she fails to notice the man suddenly grinning eerily as he reaches toward the sacred brooch shining on her chest. Startled, Sailor Mint watches as he quickly pulls his hand back—now coated in a sinister, sticky fluid. An unnatural aura emanates from the liquid, causing the brooch to suddenly shatter. Overcome with pain, Sailor Mint collapses. Deprived of her holy power, she becomes defenseless against the demons, is captured, and slowly drawn into a path of downfall and brutal training. Her fate leads to a tragic BAD END.