Detective Ghost Empress - Chapter 48

After dying in an oddly anticlimactic vending machine accident, Kazuki Ren is reincarnated in the demon realm—not as a hero, not as a villain, but as the only human male student enrolled at the mysterious Academy of Ruin, a school where all the professors are demon lords and all the students are powerful, beautiful she-demons.Ren is told he has one task: survive.But there’s a catch. The Academy’s darkest secret is about to awaken, and Ren holds a hidden power that could either destroy the demon world... or rule it.Now surrounded by seductive demons with hidden motives, eldritch tomes, forbidden dungeons, and twisted exams, Ren must master his ability—or be consumed.Magic, mystery, danger, and temptation await in this dark academia harem fantasy.

“Married rich for three years with no child born. Just when she was finally cured of infertility and ready to give him a child, he brought home his pregnant mistress in high profile.

“”Get lost if you can’t get knocked up. Or do you want my son to be the last of the Mo family?”” her mother-in-law viciously cursed.

Her husband grimly shoved a divorce agreement upon her face, “”I’ve signed. Leave when you are ready.””
It was heard later that two men went physical in the city plaze of Ye City to win back the wife, with the two babies at the side fighting fiercely for their mom!”

- Description from Novelupdates

“I don’t care what Thanos’ ideals are, and I don’t care what the consequences of having too many creatures in this universe will do, as long as he doesn’t ruin my business with that damn Infinity Glove!” – Kahn Ponte

Once he traveled to the world of American comics, Kahn had the golden finger to trade all worlds.

At this point, the name of Boss Kahn not only resounded in the Americas of the Marvel Universe, but his influence spread to all the worlds!

PS: There are many follow-up worlds such as Marvel, Naruto, Harry Potter, One Punch Man, Black Robe Pickets, Dragon Ball, Pirates, etc. You can decide…

- Description from novelbuddy

Mercy Morgan was just an ordinary young man trying to make sense of his life, but fate had other plans. One fateful night while on the verge of death, he crossed paths with Michelle Elderblood, an ancient vampire whose bite changed everything. Now transformed into Merciless Minerva Elderblood II, he finds himself thrust into a hidden world of powerful vampires and dark secrets.In this realm, where myth collides with reality, Merciless quickly realizes he is caught in a dangerous web of many powerful creatures. Meanwhile, the vampires operate under a singular, formidable king, and every encounter reveals the treacherous politics and hidden agendas that dictate their lives. Yet, amid the chaos, a singular purpose ignites within him: revenge.Merciless barely a day old must face a harrowing exam that plunges him into the depths of forbidden knowledge, forcing him to confront not only the secrets of his new existence but also the gods who have forsaken him. The pain of his past fuels his determination, and as he navigates this perilous path, he wrestles with the question of whether he is merely a pawn in someone else's game before becoming a vampire, or if he is destined for something far greater.Driven by a relentless thirst for vengeance, Merciless must gather strength and confront the darkest parts of his new identity. With every step he takes, the stakes rise, leading him closer to a confrontation that could alter the very fabric of his world.Join Merciless on a gripping journey of discovery, power, and the quest for retribution. In a dark world filled with myth, danger, and relentless ambition, can one man's desire for revenge reshape his destiny, or will it consume him entirely?