It was already dark before Ye Jin noticed she had spent quite a lot of time reading. She had been drawn into the book, becoming quite interested as the idea of mana and the control of mana fascinated her greatly, as well as the history of mana in this world.
Ye Jin didn't understand why Dion had given her this to read, especially since she was mana-less, but she believed he had done so for a reason. Maybe... just maybe, she had mana in her, even if it was just a tiny bit. All she needed was that tiny bit, and if she were able to train with it, she was sure she would be able to stand up to any mana holder, as she would be combining mana and her martial skills.
[Why don't you try to see if you have mana, then?] GMS 005 suggested.
"See if I have mana..." Ye Jin's voice trailed off as she fell into thought.
I changed the name of the king of hell to Zylthar cause I didn't really feel comfortable using Lucifer.