Han Ziye dared to venture out with the Lord of Mount Kunlun; naturally, he wouldn't have come unprepared. However, the matter of the Hunyuan Pearl being in Han Ziye's possession was kept secret, even from Nangong Xingchen. It's not because Han Ziye mistrusted Nangong Xingchen, but because he wished to avoid unnecessary complications and prevent any inadvertent trouble due to someone spilling the beans.
Han Ziye obtained the Hunyuan Pearl actually due to Shangguan Linlang. Shangguan Linlang discreetly handed it to him, cautioning Han Ziye against revealing it to anyone. Han Ziye, knowing Shangguan Linlang wouldn't harm him and considering the circumstances at the time, adhered to her advice. The world keenly eyed the Hunyuan Pearl, so even without Shangguan Linlang's reminder, Han Ziye wouldn't publicly announce it.
