Yu Qingwan obviously does not have a cultivation foundation, yet possesses a mysterious power within her body, likely a type of Innate Divine Ability. The Guiyu Clan most probably poisoned Yu Qingwan to corrode her meridians and energy sea, and even the mysterious power, to slowly extract and refine them for their own use.
Yu Qingwan is currently not deeply poisoned, she's merely unconscious. As the poison deepens, not only will her meridians and Qi Sea be riddled with holes, but her entire body will suffer. Her breath will continue, even in a state of unconsciousness, she will endure the pain akin to a thousand ants boring into her heart.
Thinking of this, Han Yan once again felt a strong surge of anger, gritting her teeth in hatred towards the Guiyu Clan.
Although the doctor scoffed at Ye Lanfeng's judgment, and even Huayue and Zirong showed expressions of disbelief, Han Yan was deeply convinced.
"Then do you know how to neutralize this poison?" Han Yan asked Ye Lanfeng.
