As the Minor Gay Love Rival in Het Novels - Chapter 4.9

Reborn and returning, he possesses medical skills, can practice immortality, has a slave who is the king of killers, and a maid who is the school beauty pursued by everyone. Even casually taking out a piece of trash can shock the world. His return has set this world ablaze.

I accidentally changed the whole world, the resurrection of the dead, genetic variation, recovery of the qi, mountain and seas reborn, land and seas expanded and evil spirits have started to appear.

Ghosts are now commonplace. Some people now have three heads and six arms. Some people have obtained martial arts techniques and ordinary people are now just cannon fodder.

Fortunately, I have acquired an ability which can make various items mutate.

books into martial arts or cultivation manuals,

fruits into precious treasures of heaven and earth or poison that you can only imagine and…

weapons, that can split the earth or gain sentience!

- Description from Novelupdates

Synopsis: System Awakening in Elegia – The System Activates!Jessie never imagined his life would end so abruptly—only to begin again in the world of One Piece. Reincarnated in Elegia, the Land of Music, he finds himself in a peaceful yet melancholic scene. Before him lies a motionless Uta, cradled gently in the arms of the infamous Red-Haired Shanks. Jessie, still powerless and stunned, can only watch as her life slowly fades.Frustrated by his helplessness and lack of strength, he suddenly hears a sound echo in his mind:[DING!][“Supreme Check-In System initializing... 1%... 100% complete.”]A voice rings out in his head, calm and mechanical—but filled with promise. The Supreme Check-In System has fully loaded. Its ability? Every time Jessie sets foot on a new island, he receives a heaven-defying reward.Stunned and thrilled, Jessie asks, “Do I have a novice reward?”[DING!][“Yes. Claim with your mind.”]Without hesitation, he shouts in his thoughts, “CLAIM!”DING![Congratulations! You have received the Sword God Inheritance (MAX)][Congratulations! You have received the 3-Domineering System (MAX)][Congratulations! You have received the One Fruit: Supreme Resurrection System]Eyes wide and heart pounding, Jessie grins with uncontrollable joy.“System, I love you so much! You’re the best! Hahaha!”With unimaginable power now coursing through him, Jessie sets his sights on rewriting destiny—starting with saving Uta, and eventually challenging the very balance of the seas!

Reincarnating to find two beauties laying on his lap, Jake found out that he was a Demon Baron with no bloodline. Exiled from the Hell to the human world, Jake was left with a small dungeon and his two servants with almost no monsters under him.

Just when he thought things weren't good for him, he suddenly heard a female voice in his head.

[Ding! Welcome host to The Sin System.]

[Please spin the Sinner's Roulette to unlock your first Sin.]

“This is...” As Jake instinctively touched the dark disk that came in his sight, the disk started spinning and stopped five seconds later. He heard the system's voice again.

[Ding! Congratulations, you have unlocked the Sin of Lust.]

— — —

Additional Tags: Evil Mc - Intelligent Mc - Shameless Mc - Scheming Mc - Smut - No Yuri - No NTR - But Contains Netori - Legal Loli - Succubus - Elf - Angel - Vampire - Cat Girls - Dragon Girls - Fox Girls - Monster Girls - Slaves - Milf - Princess - Beautiful - YANDERE - Seinen - Mature - R18 - 18 - Sex Stories - Hentai - NSFW - Pregnancy - Domination Play - Controlling Emotions - Bloodline Manipulation - Corrupting Righteous Characters - Sins - Gore - Transmigration - Mana - Devil - Demon - Necromancer - Death - Dungeon - Evolution