Noa Silphy, a member of Star Ocean Sentai Kaiser Five, was exploring an ancient treasure with her teammates when suddenly attacked by monsters. During the chaos, Noa confronts an enemy fighting against her comrade, Kaiser Pink, Aika Faleel. Prioritizing Aika's safety, Noa attempts to uncover the true nature of her opponent. Immediately afterward, Hansa, the leader of the monsters, appears before Noa and challenges her to battle. Hansa is the same foe Noa had lost to in the past, back when she operated as a vigilante before joining Kaiser Five, and now seeks to avenge that humiliation by defeating her. Noa resolves to overcome her past wounds and embrace the courage to live in the present—but… [BAD END]