Zhang Ruochen sat in cross-legged in the internal space of the Time and Space Spinel. He took out half a kilo of Spiritual Brawn from a jade vessel and started to take it.
The Spiritual Brawn, which condensed the Spiritual Qi of savage beasts and the essence of Spiritual Blood, had countless benefits for warriors, such as to gain force, to strengthen flesh and blood, and to prolong life.
Generally speaking, for a warrior who had just reached the Mid Stage of the Black Realm, eating about five kilograms of Spiritual Brawn and practicing diligently would allow him to break through the Advanced Stage of the Black Realm in half a month.
As the Body of Martial Arts of Zhang Ruochen was much stronger than many other Mid Stage warriors, if he wanted to break through to the Advanced Stage, he had to eat at least 20 kilograms of Spiritual Brawn.