Although the Dark North Battle for Supremacy only lasted for half a year and close to a month had passed, Wu Yu still calmed himself and focused on studying the two offensive spirit designs. 

He spent a substantial amount of time studying, while others were using the time to rapidly open up the distance between them. However, Wu Yu was confident in catching up and even making it to the top 10. 

On the end of the Heaven Devouring Avatar, he was still devouring the demon’s corpse. It would likely take some more time before he could completely digest it. 

Based on the current pace, the Heaven Devouring Avatar would likely be able to reach the equivalent of a 10th tier Jindan Dao cultivator or a first tier Violent Kingdom of the Inner Sea cultivator after devouring the demon. 

The truth was, the Ghost Sea Prison was the best place for the Heaven Devouring Avatar to be born. There was a large number of demons available to be killed here. If he was in the Dark North Kingdom or other places, there wouldn't be that many. 

He had roughly five months left. However, based on this speed, his devouring ability would only get stronger. It would likely take at most a month before he reached the level of Wu Yu's main body. Or perhaps he wouldn't even need that...