"What can I do about it? I have no other choice,"
she said, opening her hands, her innocent face clad in a green horse-face skirt, muttering, "The medical skills I sneaked to learn, and this little world, are all I've got. I can't beat them, nor can I escape. What else can I do but bring everyone here?"
In response to Tang Wan's confusion over "If you're so strong, why not just hang the Three Thousand Camp," Su Xiu explained that she was merely a Spring Willow Demon, the embodiment of frailty. She might not even win against Tang Wan, let alone face the extremely vicious thugs of the Three Thousand Camp.
As for why the King of Han insisted on capturing her...
"I'm not the only one,"
she said, wagging her finger at the group. "The King of Han doesn't just want to catch me—there are more monsters than that."