The crowdfunding for "Project Vogel" reached the goal of 3,000,000 Yen without incident, meaning Yuuki and her team are going to devote their time to becoming the hyperdimensional space idols, "chun×4 (Fortune)". Seeing their costumes and hearing their debut song really gets them excited. Following right after that, they hear that the details for their release event are also set. However, a mysterious shadow tails Yuzuha, almost as if this was too much happiness...