Recommending two books

Introduction to the First Villain in the History of Novels: The once genius young man Xiao Han fell into obsession and became a cripple. Not only was he heartbreakingly dumped by his fiancée, but he was also brutally humiliated by his fiancée's brother, the so-called ‘Southern Overlord'! Just then, from his mother's heirloom, a black ring, a hoarse laughter suddenly emerged… Earth traveler Wu Ye then entered the body of this bully who was tormenting Xiao Han, the ‘Southern Overlord'! 'What? My sister wants to break off with a loser and then become my woman?' 'What? My name is Wang Biao? I'm a bully? I practice the Five Tigers Gate-Cutting Saber?' 'What? That once-genius-now-loser has a ring, and there's an old man in the ring?' 'What? We also have a little horse servant named Fang Yan at home, whom I used to torment every day? He holds a grudge and now, by chance, has acquired the supreme demonic techniques of an ancient tyrant and is planning to kill my whole family and tear me to pieces?' 'Yuan Fang! This doesn't make sense!' \ And also this one, a fan work, not a light novel \ Introduction to Demon Lord Daddy 5200: He stood in a pool of blood. Beneath disheveled hair, a pair of weary red eyes flickered. His body was covered in wounds. Knife wounds, sword wounds, magic wounds… every wound was bleeding… draining his life. Beneath him lay a hill formed from piled corpses. Standing there, the dark extinguishing magic sword in his right hand—still dripped with the blood of those corpses. The blood-colored magic eye on the blade flickered, and countless chains protruding from the hilt had corroded his entire right shoulder, fusing the sword completely with his hand. Standing there, he breathed heavy and weary. The great deity looked at him and said compassionately, 'Child, you have already been completely consumed by demon blood. Now, what is it that you still desire?' He lowered his head, silent… Suddenly, a flurry of feathers rose around him? These feathers were weak and tender… anyone could see that these feathers were no match for someone entirely consumed by demon blood. But astonishingly… he trembled as he raised his left hand. A ripple flashed in his blood-red eyes. The next moment, a single feather quietly… floated into his palm…