In a world where all the people have Particularities, superpowers that awaken at the age of 18 when they become known as Adapts. A young man's life is about to change forever when he becomes 18 and something special takes place.

A dirty hobo old man was in an alley regretting his life choices and then decided to go for a piss at a nearby river when he was suddenly hit by a truck and reincarnated into another world, that however was just the beginning as the world he ended up in was one of the only men, where women didn't exist, so his fantasies of a harem of beauties were quickly dispelled for a world of femboys and burly men hitting on him. Managing to survive through trials and tribulations in this other world, he got the favor to make a deal with the Gods and got to use the ability of regression to go back in time and fix his mistakes at the cost of all his abilities and power, leaving only vague memories of the otherworld. The regression took him back all the way to the first day of his last year of high school, where everything started to change for him. Unfortunately, there was a mistake made... he looked like his hobo old self despite being 18 years old again. That caused him to be too weak, and as an orphan, he had nobody to fall on... so with that problem, he became a victim of bullying, but after all, he had been through, he refused to surrender without a fight, which led to him being dumped at the ocean to die... however he did not die... for some weird reason, he did not die, only losing consciousness then hearing a voice. [Human, You have been selected among many many candidates as the next Lust Ruler, a vicious and dangerous being in search of conquering all of reality with a harem of beauties at their side. Will you take this position? Knowing that you will not be able to love only one woman or stop your quest for power even if you feel satisfied? A position that will drive you to be Amoral, doing whatever is necessary? If you do not only will you survive today but you will have the chance to be powerful beyond comprehension!] [[Yes] Or [No]] "I will not die without a fight!" He pressed [Yes] without so much as a second thought.

There are multiple ways to live one's life and still enjoy it the same way. That was something that Kymani Njeri Marvion believed in and his ideal way of life was to master everything and see the all of the world and what it had to offer. Unfortunately, that could not be achieved as Kymani perished before he could even start. Having been unable to fulfill his dream of seeing all the world had to show as well as master it all, Kymani was disappointed but not surprised, after all, there was only so much one could see and experience before their time on earth was over. It was then, while his soul was in the infinite darkness of the Void that he was met with a multidimensional cubic structure that once in contact with him asked. [What is it that you desire?] "Desire? Huh?... If I could I would like to see it all, not just the world... I want to see what all of reality has to offer and maybe meet a beauty or two along the way, wouldn't it be nice?... Even better would be if I had one of those super loyal maids you see in anime... Hahaha! I guess that's all I want. Man, I kind of have trash desires, don't I? Hahaha! Whatever I'm already dead anyway." Kymani could help but laugh at his own desires as he let his thoughts out into the void. [Your desires, have been made achievable.] [Welcome to the Omni-Harem God System] Truck-Kun? Check Typical way to get to another world? Check Harem? Check Meeting Gods before reincarnation? Check Getting overpowered abilities? Check Throwing a bunch of other stuff in just for good measure? Check Yeah, the ingredients are here.