In the palace filled with extremely dense spiritual mist, Su Mo sat cross-legged.
He was attempting the bottleneck of the realm. To be more precise, the bottleneck of Lv 9 Martial King Realm.
Su Mo's cultivation was at Lv 7 Martial King Realm when he started this three-month training in seclusion. He successfully reached Lv 8 Martial King Realm one and a half months ago.
After cultivating for another month and half, he began to attempt Lv 9 Martial King Realm.
He had already exhausted all his cultivating resources and been working on the Supreme Spiritual Stone stored in the jade bracelet.
Supreme Spiritual Stones bore purer Spiritual Qi with less extraneous constituents which would be easier for martial artists to absorb.
However, the amount of Spiritual Qi Su Mo had been devouring was terrifying. This time, he took 300 million Supreme Spiritual Stones, equivalent to 300 billion Upper Spiritual Stones.