Aikatsu Planet!
This is the Path I Run (1x14)
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Meisa Hinata, who had vanished, is the mysterious girl who appeared before Mao. Meisa reveals her reason for leaving the Aikatsu! world and proclaims her return as an idol, bewildering Mao and others. Meanwhile, reuniting with Meisa lights a fire in Ayumi, who decides to take on the rigorous Planet Marathon. There lies the passion of rivals who recognize and improve each other.