After that day, Ru Lan had accepted Ling Kai's care to recover from his exhaustion after he consumed too much power. Ling Kai didn't have the exact same power as Bi He that could regenerate damaged tissue and replenish energy instantly, because Bi He's ability was one of a kind.
What Ling Kai had was using water ability to soothe the muscle ache. It took almost two months for Ru Lan to be able to recover fully. He was now doing push ups at the second floor, while Ling Kai was cooking food for him.
They were living under the same roof in this abandoned city infested with zombies. Though, of course, those zombies became somewhat of guards who patrolled around the area. Ling Kai would notice when a human had entered the city.
"Ru Lan, I made a mushroom soup for lunch," Ling Kai said. He watched Ru Lan who was in his one hundred push ups, barely breaking any sweat. Yunyu however, he was about to die.
[Uurgghh! System, I can't do this!]