Toaru Majutsu no Index - Volume 21, Chapter 6: The True Darkness Unfolds. Up_the_Castle.

Father's concubine framed him, coveting the treasure in Lu Chen's hands.His clan siblings were envious, fearful that Lu Chen would threaten his position as the young master of the family!The two colluded, resulting in Lu Chen being gouged in one eye and his Dantian destroyed, leaving him disabled!In such a desperate state, he also faced a life-and-death crisis on the execution stage, but only the maid Qin Yaotiao stayed by his side, willing to live and die with him!Fortunately, he obtained the Hateful Sky Clan's Totem Pupil Bead left by his biological mother, which granted him an unparalleled Pupil Skill cultivation technique and spear skills, allowing him to gradually take revenge for the blood feud and ultimately embark on the supreme path of immortality with Qin Yaotiao!

Lu Mingshu had never believed in fate.

A man is reborn into the world of Avatar: The Last Air Bender as a waterbender from Katara's tribe. Best of all, he was the same age as her, and he had a system with him to help.He knows the future and a system that lets him continuously get stronger by completing quests or long-term missions, as well as giving him the ability to copy abilities from others for himself. He will become invincible in the world of Avatar, even more so than the Avatar himself.