To honor an auspicious event, Akari Akaza, Chinatsu Yoshikawa, Kyouko Toshinou, and Yui Funami return! They decide to throw a party at their Amusement Club room, despite their odd party ideas. They begin planning for the big day with the aid of Student Council pals, including a surprise for a particular someone. Join the girls as they collaborate to throw a fun and unforgettable party, all while chatting with one another and displaying their adorable and quirky personalities.