Wind and Moon in the Sword [Reborn]

[Major revisions underway. The trope is too old-fashioned, so I may not write it. Setting it aside for now.] In his previous life, Qin Zhidu was renowned as a genius and admired by all, but someone secretly planted a demonic seed in him. On the day of his sect-leader ceremony, he lost control and slaughtered his sect by night. No one could stop him. Only his usually taciturn second junior, Jiang Yan, blew up his own Golden Core and died with him. When Qin Zhidu opened his eyes again, he had returned to five years before the sect-leader ceremony. He resolved never to repeat his past mistakes. This time, he diligently played the part of an unmotivated senior brother, indulging in fun every day and saying, "Send Jiang Yan" whenever trouble arose. His second junior, Jiang Yan, lived up to expectations. Under the pressure Qin Zhidu put on him, he shouldered the responsibility alone and smoothly became sect leader five years later. Meanwhile, Qin Zhidu retired after completing his mission, faked his death overnight, and "sacrificed" himself gloriously in the lamentations of everyone, supposedly killed in the demonic lord's uprising. What he didn't know was that, amid countless sighs of sorrow, his second junior Jiang Yan searched for his old friend year after year for seventeen years. Because his inner demon looked like his senior brother, he would rather never ascend than raise a sword against it. Later, after Qin Zhidu fled to the mortal world under the guise of his own death, he was getting into a fight as usual when he saw an immortal in frost-white robes coming beneath the moon, a long sword in his hand glinting with bone-chilling light. It was Jiang Yan, the junior brother he hadn't seen for seventeen years. Jiang Yan: Are you Qin Zhidu's son? Qin Zhidu: ? Jiang Yan calmly cut down the person chasing him. "From today on, I am your master." A beautiful, aloof junior brother × a popular (?) senior brother who is everyone's moonlight and has a sharp tongue Rebirth included. Younger top included. Mutual pining included. - Upcoming historical fantasy novel in my collection: After Transmigrating Into a Book, I Switched Fates with the Male Lead (The title may change at any time _(:з"∠)_) [Blurb] Liu Yunlai transmigrated into a cultivation power fantasy. The original male lead, Mu Changye, was a descendant of the royal family, but a curse prevented him from cultivating. Disdained by his relatives, he was sent to the frontier at sixteen. He was named a prince, but in reality he was a hostage living at the mercy of others, in a miserable state. But Mu Changye never felt sorry for himself. He treated people kindly, won them over with his charisma, and, with help from various golden fingers, became a renowned immortal leader. Then his ungrateful villainous underling kidnapped him and took him to the demon realm. He vanished without a trace. Liu Yunlai had skimmed the book so carelessly that he only realized he shared a name with the villain. What rotten luck. - When he opened his eyes, the Sword Sect's leader called him "Prince Xiang," his fellow disciples affectionately called him "Yunlai," and his royal relatives sent countless precious herbs and treasures to help the "Third Prince" recover his health. He had the villain's name and body, but the male lead's identity and privileges. Looking back, he saw another figure standing in the place that should have belonged to "Liu Yunlai," an outer disciple. The real male lead, Mu Changye. - Transmigrating as the villain and switching fates with the male lead? Liu Yunlai knew he'd hit the jackpot. Feeling guilty, he decided to save the fallen male lead, so Mu Changye wouldn't turn evil and descend into demonic corruption like the villain in the original story and drag him down with him. Socially anxious Liu Yunlai finally worked up the courage to recreate the original plot, only to find Mu Changye, who was supposed to be bullied, laughing and chatting with his fellow disciples. When Mu Changye saw him approach, he bowed respectfully. "Your Highness, Prince Xiang." Damn. The male lead really was the male lead. Even in a villain's skin, he hadn't lost his natural gift for making everyone love him. Liu Yunlai hadn't made a single friend in twenty years. After stammering for a long time, all he could manage under the real male lead's gentle gaze was: "Are you a GG or an MM?" Reading notes: 1. Beautiful, secretly ruthless top protagonist × socially anxious transmigrated-into-a-book bottom. 2. Their fates will switch back later. Theme: Be an honest person.