When he opened his eyes again, his expression gradually eased, and his eyes were filled with calmness.,The ten levels of martial arts, the first three cultivate skin, bones, and meridians. The middle three cultivate flesh, blood, and five internal organs. The last three connect tendons, transform bone, and change marrow, reaching the peak of the tenth level.,Lin Yun muttered to himself, and suddenly, he remembered something. His face changed drastically, and he hurried back into the wooden house, searching everywhere.。