Han Xiao gritted his teeth in pain, easing the force on his wrist.,Around twenty years old, his appearance vaguely resembled his past self. As for his health, it was hard to tell. He remembered what the doctor in white had said; he had been injected with the "Valkyrie Solution." This concoction was one of the budding organization's gene medicines, designed to enhance brain function, with a mortality rate as high as seventy percent. However, something had mutated within him.,"How's the experiment going" a subordinate behind him spoke, his voice gravelly with a hint of fatigue, like a cup of strong coffee, languid yet with a touch of something more.。