C502 The Strength to Crush His Opponent

The reason why Yi Qingtian's cultivation could improve so quickly was because of the hard conditions of her supreme grade lightning spirit root. The 20 plus Qi Condensation Stone that Ning Sui gave her played an important role.

That's right, Ning Sui did not give the Qi Condensation Stone to everyone or himself to cultivate. Instead, he gave it all to Yi Qingtian