The Fifteen Year Lie has gone into production, and Ruby is taking part in this movie about her own mother, Ai. However, she must now juggle being an idol, a television talent, and an actor all at the same time. And as she struggles to get into her role, how will it affect her perception of her mothe...

The Fifteen Year Lie has gone into production, and Ruby is taking part in this movie about her own mother, Ai. However, she must now juggle being an idol, a television talent, and an actor all at the same time. And as she struggles to get into her role, how will it affect her perception of her mother-daughter relationship, both in this life and the last?