Ever since Su Zhou advanced to the Awakening Tier and obtained the Divine Technique of the Evil-Devouring Demon Lord, he had been hunting Demons and Evils all over Hongcheng, trying to see if he could obtain an 'Evil Soul'.
Unfortunately, perhaps because those Demons and Evils were too weak, or perhaps because Su Zhou finished them off before they had a chance to do any real harm, neither the human-faced cats nor the floating river corpses provided any Evil Souls. At most, he got a few scattered Spiritual Energy Fragments of varying sizes, which was better than nothing.
But honestly, these Spiritual Power Fragments contained very little Spiritual Power.
To put it in perspective, a single Spiritual Energy Fragment contained 5 to 50 units, while Su Zhou's own Spiritual Qi was at least 15,000 and climbing.
A Spiritual Power reading over 100 points meant one had reached Spirit Awakening and could occasionally see Ghosts.
