A virtual doll named Regret created the world of Redo to save people from their past regrets by unknowingly trapping them in a simulation. However, this "paradise" is shaken to its core when a virtual idol named ? infiltrates Regret's virtual reality and restores the high school student's memories of the real world. To escape Redo, they re-form the Go-Home Club, a resistance group that seeks to fight against Regret and her enforcers, the Obbligato Musicians.