Film and TV Crossover: The Supporting Female Character Awakens

Looking for a Book, Something Like a Watch-Along Story

The viewing takes place at the female protagonist's home, featuring Mysterious Lotus Casebook, The Outcast, Song of Youth, and Song of Adolescence. I remember that the female protagonist could also transmigrate to different points in the same television series' timeline. She used the Horse Talisman to heal Uncle Tian from The Outcast.