Lu An is a wandering singer. In order to pursue her dream, she wandered around and lived without a fixed place. Lu An, Mamma Mia, is a wandering singer who has been wandering for many years. She can only see her son once a year. She sang on the stage of Mamma Mia to make up for her son's lack of maternal love in childhood. On the stage, she made many people feel the unparalleled powerful energy, the maternal love energy presented by Mama Mia!