MTL - My Brother-in-law is the Prince - Chapter 400 Emperor's Heart

[5 Spell Books][280 Spells and Rituals][Ressuration Completed[System initializing… Synchronization in progress…][Synchronization Complete][Harem Codex Initiated]Every normal thing in his life took a great turn after he Fucked the goddess of lust.This is what I was born to become 'A Monster.' They will fear me! They will crumble in my presence! My purpose is not to save but to destroy, my legacy will be remember forever...Azrael was once the kingdom’s deadliest weapon, forged in the shadows by the criminal elders and a king who demanded perfection. But when his humanity cracked under their brutal training, they abandoned him to a witch-run asylum, branding him broken and useless. Left to rot in despair, Azrael met his end in the ward—until the witches intervened.Out of pity and defiance, they performed a forbidden ritual, combining 280 spells from five ancient grimoires. Their sacrifice gave Azrael a second chance, transmigrating his soul into a new body.He awakens with a system unlike any other: a reality-bending tool granting him the ability to charm and seduce powerful women, each conquest unlocking new powers and revealing deeper truths about his own existence.In a world where women dominate 75% of the population, Azrael uses his newfound abilities to climb the ranks of society, assembling a loyal and influential harem. But as his strength grows, so do the secrets surrounding his rebirth. Each revelation pulls him closer to uncovering the true nature of the system and the conspiracies that reach far beyond his betrayal. Is he the master of his destiny, or just a pawn in a greater game?-___A/N: Sypnosis not long, but gives all it should give, before you judge, read up to the first 15 chapters and leave a review once done.....See y'all in the book.You want a wise MC? You got it!You want an MC who will turn out not to merciful? You got it!Fast paced story? You got it!Something a little bit new, and out of the ordinary? You got it!Level up of both the MC and Villain and system? You got it![Adventure, Action, R18, Isekai, System, weak to strong, Handsome ML, Beautiful FLs, Demons, Monster Girls, Beasts, Apocalypse: All Check ..]

“A modern online novel writer who had been struggling finds themselves transported into the world of One Piece, becoming a 10-year-old child.After a series of events, Ryuen arrives at Cocoyasi Village. The protagonist possesses the Tori Tori no Mi (Bird-Bird Fruit), Mythical Zoan type, Phoenix form.After undergoing a rebirth (Nirvana), the protagonist's transformation no longer involves turning their hands into wings, and the fruit's power becomes even stronger!From the moment they reach Cocoyasi Village, the protagonist and Nami embark on an adventure, traveling from island to island, indulging in food, drink, and fun. Along the way, they also help the poor by taking from the rich, because, after all, Bellmere’s family is still...”

A 13-year-old deaf teenager living in the 21st century suddenly found himself as a young boy in Japan during the early 1900s. With two World Wars, two nuclear bombs, Hitler and many other disasters awaiting his future, he thought things couldn't get worse.Except it did.He found out later on that he had actually reincarnated into the world of Demon Slayer where man-eating demons ruled the night. He thought things couldn't get worse.Except it did.But hey! At least he had unparalleled talent, incredibly special eyes and future knowledge.How will the story of Demon Slayer change with the addition of this unique character? Will so many still die if the Hashiras had one more pillar in the final battle?Or will the story end on a much happier note?