Naruto System in One Piece - Chapter 25

Ronan was just another overworked office drone until a sudden death transported him to a vast, unfamiliar fantasy world—alone, invincible, and armed with absurdly powerful abilities from a game he once played. But reality isn't as simple as a game, and after days of wandering the unending Nim Forest without finding civilization, his optimism begins to fade.Just as isolation threatens to wear him down, he encounters Frieren, a quiet elf girl hiding in the bushes. Their meeting marks the first step on a path neither of them fully understands, in a world that seems empty, yet full of mystery.

Earth has changed and with it so has humanity.Follow Miwen as he makes use of his Gift, Gacha Kingdom Building.

I have experienced all the eight sufferings of this world.

I do not ask for nirvana, but for you.

Wild and hard-to-tame demon (gong) x cold, ascetic and childish immortal (shou)

- Description from Novelupdates

“Dane?” “Yeah, the bastard whose head I smashed with a fire extinguisher.” Grayson Miller, whose life goal is to meet his destined partner just like his Papa and Daddy who gave birth to him. However, even after dating countless people, he hasn’t found the right one. Desperate, he even sought out a renowned shaman, who told him that his destined partner was someone connected to ‘fire’ and has ‘big breasts’. Doubtful, but still pondering how to make the connection, he attends a pheromone party where a sudden fire breaks out. While toying with the omegas and spreading his pheromones left and right, he suddenly lost consciousness after having his pheromones controlled by a certain Extreme Omega. After waking up, Grayson realize that his destined partner might be working at the fire station, and with his father’s help, he gets a job there through connections. However, from the very first day, he gets into a physical fight with the firefighters who were keeping him in check, and among them, he also gets particularly entangled with that Dane Striker bastard…….