Tsumugi's Feelings Resonate A few days have passed since Tsumugi disappeared. With the sun covered in shadow, Aipriverse remains closed. Himari and Mitsuki spend their days feeling depressed. Then, Himari's father, Yuki, contacts them. He tells them that Tsumugi hasn't completely disappeared yet. It seems that if they can gather "fragments of memories", Tsumugi may be able to return. Himari thinks that if she can deliver "fun" feelings, Tsumugi's memories may come back, so she decides to hold a live concert. It's the most luxurious Aipri birthday ever, with Quartet Star Chii also attending. Will the Aipri girls be able to get Tsumugi back?