Yuu and Saya, famous for their prowess as Cosmic Hunters, had just started a romantic evening when they were alerted to a plea for help from their "friend" Nyan, who had a questionable interest in felines. At the same time, the notorious space raider Belga was raiding freight vessels, driven by her longing to claim Yuu as her own. When Yuu rejected her advances, she vowed to prevent anyone else from winning his heart. Yuu, enjoying his recent surge in celebrity status, suddenly found himself at the mercy of unwelcome admirers.