To be precise, it hadn't started after he entered the game...
Rather, not long after the game in Fog City ended, Su Bai had begun to grow drowsy.
Xiao Wu, who had dutifully stayed in the shop throughout that time, said this was because the Mist Shop was absorbing and converting the power that came from the Fog City Lord. Although the "Mayor Bai" dealt with inside the shop had only been a Doll incarnation of the Fog City Lord, the drastic changes in Fog City after Mayor Bai disappeared made it clear that the power contained in that incarnation had been considerable.
That was why, after losing Mayor Bai, all the fog in Fog City had dispersed, allowing the human Players to clear the game by a stroke of luck. Although the Ghost Creatures in Fog City and its mutating residents had not disappeared, the memories they had possessed as Ghost Creatures, previously suppressed by the Dense Fog, had fully returned. From that moment on, the "people of Fog City" had ceased to exist. All that remained in the city's ruins were the Strange Creatures that had been forced to live as humans for a time.
Perhaps they felt joy, perhaps anger, perhaps sorrow... but none of that amounted to much compared with the vast Nightmare World.
For Su Bai, the biggest change came a few days after he returned to the Real World, when Xiao Wu told him that the Mist Shop was about to begin absorbing and converting the power within the Doll. That power might not have meant much to the Ghost Shaman, but to the fledgling Mist Shop, it was an all-purpose restorative far beyond what it could handle.
Taking too many supplements could cause side effects in humans, and the Mist Shop... even its