Epic of the Broken Immortal

Unexpected

Matthew and his father sat down at the kitchen table together and sat in silence for a moment before his father began to speak.

"How is your progress with the book I gave you going?" his father asked.

"Better than I could have hoped actually. My mana perception is advancing it isn't far from from the greater grade and my body refining has reached the point that I can begin to refine my bones." Matthew said

"That's good. Be careful though, the bone refinement will be more painful than the marrow refinement. After that step though, it will get easier as your body with go through a change that will passively refine your body. Even if you stop using the technique, your body will still continue to change." his father said.

"Dad, how do you know so much about the technique if you never used it?" Matthew asked

"Well, my father invented it after all. I never had to use this particular technique since I was born with a regular mana core. He invented this tec