Seven years ago, she had inadvertently used pangolin scale as a tonic for Moh Shiche, which caused him to suffer an extremely severe bout of poisoning. She had thought he would self-harm like he always did, but after a bout of excruciating self-struggle, he suddenly developed ... a second personality.
She looked up the information—
This was because the toxins in Moh Shiche's body would frequently flare up. After countless instances of extreme pain, his brain generated a strong instinct for self-preservation, constantly alternating between clarity and agony... until it finally split off a completely independent second personality.
And furthermore, it could only emerge when the concentration of toxins in his body reached its peak, which is to say, when he was in the throes of an attack.
