Yuu Asuka enters the Venus Games, a martial arts tournament for restaurant waitresses, only to discover the competition's horrific stakes when her friend Sanari is brutally assaulted after losing her match. Devastated and determined, Yuu vows to win the tournament to protect others, while a dark secret is revealed regarding her own origin as a clone.
As the Venus Games progress, Ayumi Okamoto and Anna Fairgold secure victories, while the defeated contestants face brutal penalties. Before her loss, Kei Sagara leaves a desperate video message for Yuu, urging her to stop the monstrous Anna. Meanwhile, a shocking revelation emerges that Yuu and Anna are actually twin clones, adding a layer of familial tragedy to the tournament as Yuu resolves to win at all costs.
Rita, a VGN agent, exposes the Venus Games as a cover for Dr. Garret's sinister "Alchemist's Plan" to create human weapons known as Materials. As the truth about Yuu and Anna being fraternal clones of Yuka comes to light, the two are forced into a premature final showdown amidst a chaotic explosion on the luxury cruiser. Yuu ultimately claims victory and the championship, bringing an end to the Professor's experiments while Anna resolves to hunt down the remaining Alchemists.