Avos replied with uncertainty, "The step after accepting a life sword is to have the sword spirit communicate with the owner and fully integrate with the sword master, though I'm not completely sure since I'd never been a life sword. Nonetheless, as long as you can communicate with the sword spirit, you will be able to show the true might of sword heart."
Ace's expression instantly fell when he heard it. He knew better than anyone that sword cores had never had a spirit before, and he couldn't control them yet. Still, he tried to activate his sword heart again and probe the two sword cores that had vanished within.
However, this time, just when the sword phantom behind him began to materialize, Ace suddenly felt his heart being stabbed with excruciating pain, and he quickly stopped as sweat beaded on his forehead.