Eighteen Years Without a Lover, and My Left Hand Can Evolve Without Limits

Apocalyptic Revenge Begins with Killing the Principal's Son. Ling Heng transmigrates to a world where aliens and armored warriors have been at war for many years. He thought he could live out his days in peace with his intellectually disabled older sister. But one day, while delivering takeout, he was falsely accused and thrown into prison, then forcibly exiled. His happy life was completely rewritten, and a hellish existence awaited him. To protect his sister and find a measure of peace, he grew stronger again and again and searched for the truth. Then, one day, he broke down and cried out, "Sister, what... are you, really?!"