"After You" by Jojo Moyes is the sequel to "Me Before You." The novel follows Louisa Clark as she struggles to rebuild her life after the death of Will Traynor. Living back in London, Louisa grapples with grief and guilt while trying to honor Will's memory. She joins a support group and faces new challenges when a teenage girl named Lily, who claims to be Will's daughter, enters her life. As Lou helps Lily navigate her own difficulties, she begins to find healing and a renewed sense of purpose, discovering that life after loss can still hold unexpected joys and new beginnings.