Naruto: Obito's Possessive, Beautiful Boyfriend Forces His Love on Him

[Two male leads, universally adored protagonist, reborn, doted on by everyone, yandere, dark, feel-good drama, OOC, no moral standards] (Original male protagonist. Obito is the top and Uchiha Zhouye is the bottom. The protagonist is a yandere, turns dark, and is extremely possessive. He may force himself on others and is a sickly beauty who bottoms. He'll stop at nothing to get what he wants. Because he's so beautiful, people often mistake him for a girl. He's a universally adored succubus type.) He is reborn into the Uchiha Clan, the child of the Uchiha Clan and the princess of the Land of Cats, and he can transform into an animal from birth. His adorable black cat ears and tail win the love and affection of many villagers. He was born with a naturally beautiful face, and seems gentle on the surface. Little do they know, in his previous life he was a sinister little dumpling of a demon king. If it's someone he likes, or someone who's his target, he'll stop at nothing to get what he wants. But all that happiness falls apart when Obito is declared dead. The seed of evil blooms, and he becomes a true devil! “You weren't dead. Why didn't you come find me?” He stares at the broken mask before him, tears of blood streaming down his face. Obito snorts. “What am I to you? What gives you the right to expect me to come back?” (The protagonist stops at nothing and schemes against people. He'll also kill off some characters. He's not a good person, but he's not pure evil either, and he won't waste time agonizing over things.)