What's Wrong with My Secret Identity?

System A is a top-tier System, first-rate in both experience and ability. Recently, it accepted a mission: wear a modified secret identity and make the world acknowledge that the character it plays is real. Having guided countless Hosts and carefully taught them how to outsmart the Prison Realm, play tricks on Boss Dazai, and turn the tables on the cotton-candy monster Byakuran, System A sets out with its script in hand After enduring the long passage of time, "King of Curses 5t5" is left with nothing but obsession. Deeply dissatisfied with his own world, he decides to either reform it from the source or invade other worlds and plunder them. "Contractor Ranpo" faces off against the members of the Detective Agency. His altered mental makeup leaves him unable to feel any emotions. With his extraordinary intelligence and vanished moral limits, Yokohama is now home to a genuine "perfect crime". And that's not all: there's Rainbow Child Tsunayoshi, Six Paths Madara, a true-loyalist Bourbon from the distillery, a hate-meter-maxed Ruler King Gilgamesh... During the mission, something begins to sprout from deep inside System A. The protagonist: Acting is so much fun. Writing scripts is a blast. Other Systems: He left as a cold-faced big shot and came back as a deranged demon king... What did the world do to him?! The world: Shouldn't you ask what he did to me?! Damn it!!! [Warnings] 1. Characters may be out of character; this is not for canon purists. 2. The protagonist is a big shot who never messes up, and a master of scripts. 3. The secret identity is never exposed. 4. 70% anti-piracy protection, 72-hour delay. ▽Completed▽ Did Gintoki Mess Up Today? Special Grade Cursed Spirit Yuji Shamelessly promoting my upcoming novel ▽Upcoming novel synopsis▽ After I Tricked a Disabled Alpha into Falling for Me, I Regretted It [ABO] A captivating, fickle beauty as the bottom × a ruthless, deranged top who seems impeccably polite but has a soft spot for the bottom alone 1. After transmigrating as a frail, sickly Omega who'd been manipulated and left to fend for himself, Qi Ning resolutely fights back to keep his inheritance from falling into the hands of the scumbags who tormented the original owner. Along the way, the little con artist cheats a sheep for money, sex, and affection, shearing that one sheep for all he's worth before walking away once he's used the big fat sheep to get himself established. Then he discovers that Omegas in this new world have no inheritance rights. He needs an Alpha to marry into his family, or no amount of fighting will help. Qi Ning: "..." Just as he starts wondering whether he should simply trick someone else, the big fat sheep comes after him again. Fu Jingyi: "Do you have anything to explain?" His body is still weak after an injection of suppressants. Qi Ning tugs open his collar and smiles. "A fake mark. All that's missing is a bite mark." 2. When people hear that Fu Jingyi has gotten engaged to the young master of the Qi family who was left outside, they all prick up their ears. Everyone knows that the Empire's little prince, Fu Jingyi, is a powerful Alpha who's good at everything, but can't smell pheromones or mark anyone. In a world where pheromones are everywhere, he's like an island unto himself. Having watched Fu Jingyi grow up, everyone carefully observes Qi Ning's recent ambitious antics. They cluck over his claim that "love costs money" and reach the same conclusion: he's heartless and unfeeling. It's a business marriage, so they'll split up sooner or later! But soon, everyone realizes that Qi Ning excels in every area, from character and academics to sports and the arts. He's handsome, charming, optimistic, cheerful, and positive, and every day he's all sweet and lovey-dovey with Fu Jingyi, with eyes only for him. Everyone is stunned and envious. Then they start poring over Qi Ning's absurdly long pheromone compatibility list, hoping to find their own names on it. Everyone swears up and down: "Those two can't really be in love. How could they be, without pheromone attraction?!" So it isn't really stealing someone's partner. It's more like a liberation movement! If he's going to trick someone, let it be me! Qi Ning is delighted with how things are turning out. Watching him cheerfully sort through potential targets, Fu Jingyi nearly grinds his teeth to dust. A week after disappearing, the two reappear in public. Everyone sees the layers of overlapping bite marks on Qi Ning's fair neck, still oozing blood and impossible to hide even under a high collar, and their vision goes black. In front of everyone, Fu Jingyi declares his claim: "Mine." "...What?!" Everyone goes wild. This story is also known as The Lying Omega Will Have Plenty of Ahegao (not really). [Reader's notes] 1. The top is not impotent! He's very potent! And there's a medical miracle later on (?) 2. Sweet, 1v1 from beginning to end, both are each other's first love, and the top pampers the bottom. Theme: Finding your own worth is the only way to prove yourself.