The year is 20XX... Emma is the strongest primate J○ fighter. She has never been defeated in her life. She is so amazing that she can easily win against men. At the fighting gym she goes to, she gets annoyed at the weakness of her male training partners, and she abuses them and punishes them mercilessly. The men's pride is shattered, and they soon become angry at Emma... One day, she buys a suspicious drug from a dark website that is said to weaken both her strength and her body, and on a whim she gives it to them...