"There's a tiny speck inside your core filled with rimefrost energy. As time passes, this speck will gradually enlarge, reaching a size that will impact your core ten years later," Felix explained. "You may not be in fatal danger when that time comes, but you will experience side effects if you are to fight against someone else. I think I won't need to describe them; you already know."

Ginny's mouth was wide with shock. She didn't expect things to be so serious. Practicing the martial arts was