Soul Devourment

The Darkness Blood Demon was shocked. He later realized that the gush of energy was his soul power after having gone through a few twists and turns in his life. The act of devouring his grandfather's soul had given him rank-1 soul power. 

He felt grateful for the gift left behind by his grandfather. He was overjoyed to discover that he had soul power at last. He went searching for an elementary soul academy to join since he now possessed soul power. Soon, he discovered that all the soul master's cultivation techniques were incompatible to him including the meditation. His rank-1 soul power did not show any signs of improvement even after he cultivated for a full six months.

Hence, he was expelled from the academy since he could not elevate his cultivation. 

Out of the blue, the Darkness Blood Demon suddenly recalled the situation which led him to possess soul power the first time. Perhaps, it was related to dead people?