The Crown's Entrapment - Chapter 18

In the era of universal mechas, people can go to the endless abyss, collect materials, strengthen and forge their own mechas, and master the power of destroying the world.

Jiang Chen traveled through time and awakened his talent [Immortal Unarmed]. Once the mecha is broken, he can permanently absorb its power and receive multiple bonuses.

…

At the bottom of the abyss, when the Old Demon God finally broke the Titan mecha with great effort, a hand stretched out from the fragments and held down its head.

“Congratulations, you have unlocked my limiter.”

- Description from novelbuddy

In one moment, he was walking down the street with his little sister—In the next, he had traveled to the world of One Piece, carrying a system that could extract, record, and fuse genes to cultivate powerful lifeforms.Thus began a leisurely and carefree life in the most chaotic world imaginable.When bored, he’d snatch a bit of heavenly tribute meant for the Celestial Dragons.When curious, he’d raise a few cute kittens and bunnies just for fun.When restless, he’d wander through the territories of the most fearsome powers in the New World.Life is beautiful—so why bother taking anything seriously?

With Ye Chen, who inherited the devil, reborn the Phoenix continent, invincible, there will be any unknown secrets waiting to be solved here.
   The “City Revival Master” has been completed, and my brothers support it ~~

- Description from ~

sidelines, cheering for the MCs like the dedicated shipper she is. But plot twist—she’s now a guy. And not just any guy—a ridiculously handsome guy!After spending an embarrassing amount of time winking at her own reflection and flexing muscles she never had before, she decides, “Why just watch the romance when you can be the romance?” Armed with good looks, charm, and way too much insider knowledge of every trope imaginable, she sets out to conquer every character in the story, including the MC she used to fangirl over.But wait… Does this make her gay? Or straight? Or just hopelessly in love with her own fictional fantasy? Frankly, she’s too busy causing chaos (and enjoying it) to care.PS: There is smut, and its reverse harem :3