I can't decide what I like better, stories where Ran was Yukari's shiki from a young age like here, or ones where she had a history of her own, and came to Yukari later for any of a number of reasons. It's hard to decide.
And to be honest, Ran x Shou isn't something that would have occurred to me. Is there even a pairing for Ran besides Yukari or Chen on the reader in the first place?