This story is written to explain sibling relationships and co-parenting schedules to kids. The main character, Olivia, is a little girl who notices her Sissy "disappears" and has trouble finding her. By the end of the story, Olivia learns her Sissy is her "half-sibling and they don't have the same Mommy! Follow along with Olivia as she learns where Sissy goes and why her family dynamic is very common in this modern day world.