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

This story follows four delinquent girls who only know how to fight, reincarnating as idols in an unknown world, clashing with each other while striking back against the malice of the entertainment industry. In the once-feared delinquent zone of Seirei Zero, there were four legendary female gang leaders known as the Renbo Four Princesses: Aoyama Rina, Shirakumo Hiyo, Akatori Kina, and Kureno 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' in the corner of the entertainment world.