A teenaged Ben found out that he and Kaydel Ko are half-siblings—maybe Leia had an affair, or took a lover while she and Han were separated and got pregnant—which helped Snoke to drive a wedge between Ben and his parents.

Now, Leia is asking the daughter she's never claimed, publicly at least, to help her bring Ben back to the light. Is Kaydel Ko resentful? Happy? Willing to help? Unwilling?