All of a sudden, Li Tian could feel a strong attraction. He released it from his body, and then covered it on the top of the magic crystal. After the crystal was covered, the evil Qi inside also began to surge towards Li Tian's body. At the speed visible to the naked eye, the magic gas in the magic crystal had disappeared.

after a magic crystal has been absorbed, Li Tian estimates the time and finds that it is only five minutes to absorb a magic crystal of demon king level.

it takes five minutes to absorb the magic gas in a magic crystal. Then it will not take much...