Nope. He still refused to believe it. The alternative was much, much more plausible. Special physiques could be divided into two kinds. Random and inherited. Random physiques were the ones that anyone could awaken by chance.
Inherited, on the other hand, were passed down through bloodline. He concluded that his special physique was an inherited one that had mutated. When he was six years old, he was kidnapped from the streets of Sichuan, the home to the Tang Clan.
The Tang Clan was one of the Five Clans of the Righteous Alliance, famous for its immaculate use of toxins. They also had an inherited special physique, the Myriad Toxins Immune Body. Almost every person that had the blood of the Main House of Tang Clan could awaken it or one of its weakened versions, The Ten Toxins Immune Body, Hundred Toxins Immune Body, or the Thousand Toxins Immune Body.