Am I a Substitute? What a Coincidence, so Are You

Are There Any Novels in Which the Heroine Acts as a Substitute for Bai Yueguang's Medical Treatment?

Is there a novel in which the heroine acts as a substitute for four bosses at the same time in order to treat Bai Yueguang? It turns out that the boss, Bai Yueguang, is the heroine's sister, and the heroine was lost many years ago (the sister is a good person)