What is the name of

"Ah..." Nán Wǎnyān unconsciously cried out in pain, blood streaming from her forehead. The man behind her roared with fury——,She was taken aback, yet her whole body felt limp and powerless. The tingling numbness, like that of being bitten by insects, made it impossible for her to refuse this encounter.,But this black spot seems to be caused by poisoning, right。