In an hour, the aura on Alex's body exploded out.
After assimilating a little more than half of the Pure Yin Qi in his body, he broke through to the 9th stage of Body Tempering Realm and rushed straight to the peak of the 9th stage.
Alex instinctively stopped using the rest of the Yin Qi because it would help him later when he congeals his Dantian making it stronger and more robust then what he could achieve now.
Rushing now to the Dantian Formation Realm would not deem good for Alex as he needs to prepare first and also stabilize his current stage.
Crossing to the next major realm needs to done with caution and ample preparation.
Feeling the power coursing through his veins, Alex felt that he could fight someone in the Early Dantian Formation Realm to a draw or maybe even defeat the person.
Anyway, Alex was feeling very energetic now, he felt a visible improvement to his body's 5 senses.