Daily Life RPG System - Chapter 1: Inheritor

Suddenly, the mysterious book I received turned out to describe my own life?Once I chose to change my destiny, the life within the book changed as well.In the book, I encountered insincerity, spent ten years behind bars, and witnessed viruses laying Siege...Cancer, bus plunging off cliffs, plane crashes, senile dementia ... even the end of days – a variety of deaths; was this fate's punishment for the rebels?No one is a hero; it is just that this disaster-ridden fate forcibly made me into a warrior charging into battle.Those who killed me over and over will ultimately make me stronger!Through numerous life simulations, I amassed wealth from the financial markets, rescued innocent girls from felons, and acquired advanced technology from the future...Although I always encounter various disasters and accidents, I still strive to flutter the butterfly's wings, changing my original fate little by little.After countless simulations, the world too embarked on a completely different path.However, where did this autobiography come from?Behind it all, what kind of unknown conspiracy is lurking...[A literary man's laid-back daily life of unlimited simulations to save the world]

500 years ago, Chen Xi was devoured by a crack in the void and was transported into a cultivation world.

prev name: In mha with jjk power.---------[mha synopsis]“Hero? Villian? It is all redundant.”“There is no such thing as good or bad, only interest is what matters.”Kurokai Sento said as he faced the inheritors of One For All and All For One standing against him with their fellow Heros and Villains.“Why? Why?! Just what is your motive?! Kurokai!”Kurokai smiled and replied calmly.“Motive? Of course, there is, unfortunately, none of you can understand.”--------------------------------It is a multiverse travel type of fanfic. The first world will, of course, be MHA(complete). Then Overlord(Ongoing), danmachi(ongoing)You can directly start reading from Overlord if you want, it won't affect the flow.---------------[Overlord synopsis]Lioro blankly looked at the game like screen in front of him.It seems he has traversed to Overlord world with a Yggdrasil like game template![Ding! Congratulations on getting the special profession 'Dimensional Traveler']“......”Can it take me home?

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.