I Almost Died but Became a Peerless Master

His parents are dead, his sister is missing, and the helpless Chu Xiaohe is about to freeze to death in this cold winter month. Is this the only way to go? Die here? No, sister... Should go to her, no matter what. Good-hearted people took him in and taught him martial arts and sword practice, reading and literacy, and the principles of life. What is the truth behind my sister's disappearance? He doesn't remember anything. He lied to himself that his sister's disappearance must have been snatched away...