Reborn as the Immortal Venerable's Beloved

After being reborn, Lan Xi realized that he was nothing more than a tool for other people to complete their missions. His gentle senior disciple brother, who often took him sightseeing, was trying to earn his "ten thousand smiles." His unruly little junior nephew, who kept throwing poisonous snakes and scorpions onto his bed, was trying to earn his "three catties of tears." The Demon Realm's monster king, who treated him with tenderness and patience, was trying to lure him into falling to the demonic path. And his master, who rescued him from a theater only to turn cold and humiliate him in every way, was merely trying to raise his "dislike score." Lan Xi severed his own heart meridians. When he opened his eyes, he found himself back at the beginning. After being reborn, he turned dark. He hated those who meant him harm, but hated even more the Immortal Venerable who had given him hope only to drag him into hell. He refused to give his senior brother so much as a smile. When the other man ingratiated himself with him, Lan Xi gazed sadly at the sky. "Lan Xi is so foolish. I can't even make Master smile. How could I possibly feel like laughing?" He raised a spirit crane and told it to dump the poisonous bugs covering his bed onto his little junior nephew. Watching the nephew get bitten by the bugs, he said, "Master gave Lan Xi this crane. Lan Xi didn't know it would..." He turned down the monster king's generous offers time and time again, looking deeply troubled. "Master gave Lan Xi a new life. As long as Master remains in the immortal realm, Lan Xi wouldn't dare betray him." And so everyone knew that Lan Xi refused to smile, cry, or fall to the demonic path... all because of Cang Cong. As Lan Xi watched the hateful looks directed at Cang Cong, the corners of his mouth curled up. He was filled with the satisfaction of revenge. At the sword competition, the Immortal Venerable sat on the high platform, his white robes trailing on the ground. His refined, handsome features were so dignified they inspired awe. In a daze, his little disciple flung himself into his arms, his beautiful little face tilted up, the corners of his eyes flushed red. Sobbing, he cried, "Lan Xi knows he's done wrong. Lan Xi will serve you properly. Please don't be angry, Master. Lan Xi is willing to cultivate with you in dual cultivation, all right?" The whole hall was stunned. Cang Cong restrained the hands trying to slip inside his robes. Hearing the whispers below, his expression grew even colder and sterner. But no one noticed that beneath the Immortal Venerable's icy expression, his ears had turned bright red beneath his black hair. Lan Xi had planned to expose Cang Cong's hypocritical facade, drag him into the mud, and take his revenge. But he hadn't expected the mission-taker from his previous life to run into trouble halfway through. The person inside the Immortal Venerable's body was now a genuine native of this world, just like him. tips: [Cool and Dignified Master as Top x Darkened, Scheming Green-Tea Disciple as Bottom] In his previous life, the bottom had no feelings for his master beyond those of a disciple. Note added 2021-07-09 Message: Every person is a lamp