Characters: Su Muxi, Song Xindie, Ruan Qingcen, Shangguan Yun'en, Jiang Maotang, and also Su Muqing. In Xingye, an interface search reveals: Dreamcore Milk Bunny Girl Group. It can be found, with authors (different names, possibly due to a name change): Fu and Ying.
This tells the story of the Dreamcore Milk Bunny Girl Group's journey to becoming the world's number one girl group, alongside other events. It is a continuation of the third story, featuring an expanded cast, with the timeline starting from 2035.
Character Profiles:
Chapter 300