When the Four Heavenly Kings of the Delinquent Battle Zone Reincarnate as an Idol Group

This story follows four delinquent girls who know nothing but fighting as they reincarnate as idols, clashing in an unfamiliar world while striking back against the malice of the entertainment industry in an underdog uprising. In the infamous delinquent battleground of Seirei Zero, there were four legendary female gang leaders known as the Renbo Four Princesses: Aoyama Rina, Shirakumo Hiyo, Akatori Koto, and Kurono Nene. However, one day, they are ambushed by someone. When they wake up, they find themselves reincarnated as members of the obscure, third-rate idol group 'Heartbeat Four Princesses' at the bottom of the entertainment world.