One Piece: I'm Destined to Be the Son-in-Law King! - Chapter 9: Axe King’s Approval

What to do when you find yourself transformed into the vicious female supporting character in a family that dotes on the group pet?Of course, it's to keep away from the protagonist,She's practically the darling of the heavens, with a protagonist halo so strong even a dog would fall for her.Hiss, Bai Zhi said, “Can't compete, can't compete, cherish life, stay away from the protagonist.”All she wanted was to quietly make some small money and live freely, but—Group pet with tearful eyes, “Sister, come back, I'll let you have our brother.”Bai Zhi, “...” No need, I refuse.Group pet with an overflowing Mother Teresa complex, “This was all my fault; please, don't blame my sister!”Bai Zhi, “...” Look at this white lotus script; hey! Where's my knife?—Even more fantastic was when that baby-faced weak little brother suddenly appeared midway and transformed into a boss!Bai Zhi, “???”A new book has started; the Film Emperor's daughter is hibernating again. There are new book activities, sweet, sweet, sweet

An 18-year-old poor college student tried to apply for a job as a tutor but his life almost ended as demons' meal. In his last breath, a mysterious woman gave him a strange power. When he opened his eyes he had turned into a demon with a system that would turn him into… A pervert.

Now he must lived with his dual identity as a model student named Ethan and an incubus named Damian.

"With this system, I'll become the world's greatest seducer! If it doesn't kill me first..." I was a nobody, a short fatty Otaku. Then a girl's voice popped into my head: [Seduce a woman within a month or die.]
"What the hell...how? I'm an 18-year-old virgin..."
[7+ looks only. No slam donkeys.]
"You’re forcing me to die!”

Facing annihilation, I had no choice but to join the international community of pick up artists. That’s how my boring student life became filled with craziness and womanizing. I just had one problem: "Why are these guys all insane?"

Pick Up Artist: One who uses specialized tactics to seduce women.

Additional Tags: weak to strong, supernatural, fantasy, funny, dungeon, face smacking, bloodlines, modern, harem, r-18, litrpg,magic, cultivation, martial arts, shameless protagonist, parody, satire, succubus, netori, adult, ecchi, sex, hidden gem, drama, wuxia, adventure, mature, school life, seinen, princess, billionaire, werewolves, xuanhuan, erotic, erotica, romance, revenge, polygamy, psychological, r18, 18, 18+, smut, hentai, comedy, light novel, alchemy, system.

*If you're wary of reading originals, I assure you that I'm a native English speaker and you'll find the writing here to be at a professional standard.

RELEASE SCHEDULE: 1 new chapter posted every day by 12 pm Est/12 am GMT+8. Bonus chapters don't have a set time, but if there are some pending, on per day is posted for 2 chaps/day total.

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A big shounen thank you for the anime/manga cover character to https://www.deviantart.com/kirayamato74 and https://www.deviantart.com/gigamessy

[sexual content and lemons warning]Warning: Sexual content, lemons, Comedy, MILFs, Genius Mc and his harem.Possessive MC, Large Harem, Capable Harem members, No Conscience towards men, Mc is a Chill guy until anything happens to his women.~×~×~×~×~×~×~×~×~×~×~×~×~Ethan Nocturne always thought he was just a regular guy in a world where everyone awakens superpowers at 18. But when his birthday comes, everything changes. His body feels stronger, his senses sharper, and women—especially the ones around him—start acting strangely, drawn to him in ways he doesn’t understand.Then, the truth hits him—he’s not human. He carries the Incubus Bloodline, the rare male counterpart to a succubus. And his adoptive family? They’re not just powerful superhumans. His stepmother, Lilith Nocturne, is the Succubus Queen, and his three stunning stepsisters are Succubus Princesses—rulers of an entire fantasy planet.But here’s the strangest part—they don’t know what he really is.As Ethan struggles to make sense of his new reality, he learns that the world’s superpowers aren’t as simple as people believe. Fantasy creatures—elves, vampires, dragonkin, and more—aren’t just myths. They’re real. And they’ve been living in secret among humans.Now, they’re appearing in his life, drawn to him for reasons he can’t explain. His bloodline, his awakening, and the system guiding him—it’s all connected to something much bigger.Why have these races stayed hidden for so long? What is the real truth behind superpowers? And why does he feel like his very existence is meant to change everything?With a system pushing him toward his incubus instincts, powerful women from all over the world—and beyond—falling into his orbit, and forces in the shadows watching his every move, Ethan has two choices—fight it or embrace it.But one thing is clear—his life will never be the same again.