Qi Baiyu definitely wanted to go down by herself, but the choices Yuchi offered were only two: either let him hold her as they descended, or have him stay below her to prevent others from seeing anything untoward.
And Qi Baiyu didn't know how to expose Yuchi's little scheme at all, so in the end, she had no choice but to let him help her. Now she's leaning against him, her head buried in his clothes, feeling utterly confused as they go down the rope. Is this what they call a princess carry?
Who could resist this?
Yuchi himself is quite handsome, and though he acts mischievous, his natural charisma can't be hidden. He's a seasoned veteran, and this young girl with no experience couldn't possibly resist. So, not to mention Qi Baiyu, even Qian Qun wouldn't be able to withstand this full-on charm offensive.
