Yayoi Sakamoto, a diehard fan of comedians and comedy acts, enrolls in the private Kazuki High School in Nanba (Osaka's entertainment district famous as the starting point for many comedians). She reunites with Yomogi Takahashi, a childhood friend who once formed the comedy duo "Konamonzu" with her when they were little. Before long, they find themselves putting together a routine at a park like they did before, in order to enter a local shopping area's contest. At that moment, a mysterious girl calls out to them.

从Popipa主办的演唱会开始已经4个月了。度过了愉快的暑假，季节是秋天。藏练、打工、学生会——一直过着日常生活的香澄他们Poppin'Party在LIVE HOUSE Galaxy上，发现了一张海报。另一方面，寻找命运乐队成员的六花收到了一封邀请函……再次开始闪闪发光的心跳舞台！只要和大家在一起，不管是什么梦想都能战胜！

少女香澄一直寻找着幼年时在欣赏星空时所感受到的那股星之鼓动……直至高中入学后不久，香澄在古物商仓库中偶然看见了一把星型吉他、她心中那股封闭已久的情感就此流露而出。以此为契机、qiwan.cc香澄与4位同样在寻找光辉之所的女孩们相遇，一同演奏出了单凭一人无法表现出的音乐，共同朝着梦想迈进！

In dieser Fortsetzung von »BanG Dream! 3rd Season« steht bei den Bandmitgliedern von Poppin’Party eine weitere wichtige Veränderung an. Als ein mysteriöses junges Mädchen erscheint, bekommen Kasumi Toyama und ihre Freundinnen die einmalige Chance, vielleicht auch Bühnen im Ausland zu erobern ...

Jet Racing's wet-n-wild combo of PWC racing and watergun sharpshooting has become mega-popular across the world. Rin Namiki wants in on the action, and after meeting the cool and gorgeous Misa Aoi, it looks like Rin's dreams are finally in reach!