Twin Sisters of Revance

The boys have twin sisters who are an idol group. These girls preform concerts and of course do other jobs. What happens when Revance seen their sisters again at a party? What happens when Revance later suddenly shows up during a musical rehearsal? Close once, these siblings are now closer to enemies. What if the ghost writer was brought on to aid Ryo not to replace him? Can the ghost writer, who happens to know the girls but not who their brothers are, bring these siblings close again? Or will the business get in the way? Come with me on an adventure.