Mana Nagase, who worked with her friend Makino, became one of the greatest aspiring idols during her time. Now, a few years later, her younger sister, Kotono, joins a girl named Sakura and t... Read allMana Nagase, who worked with her friend Makino, became one of the greatest aspiring idols during her time. Now, a few years later, her younger sister, Kotono, joins a girl named Sakura and ten others on an idol journey of a lifetime.Mana Nagase, who worked with her friend Makino, became one of the greatest aspiring idols during her time. Now, a few years later, her younger sister, Kotono, joins a girl named Sakura and ten others on an idol journey of a lifetime.