System: Transcending Happiness (BoyxBoy)

(WARNING: Don't read if you're going to complain there isn't a warning when there's sex, gore, et c. This is a very ADULT novel and as such only ADULTS should read it. Or 'Children' mature enough to read without commenting nonsense.)

Jia Yi Ruogang was one of the leading experts in Computer Software, to the extent that everyone believed he was a computer. New Age Government Office had issued him a Pass to go ahead and Hack into systems as he saw fit because of how much Humanity relied on his expertise.
Jia Yi was given an arranged marriage with the strongest General leading Humanity in the pursuit of exterminating all the Vrahqs, alien lifeforms, that attacked them. Sadly, someone was livid that the man he loved was being forced to marry another who he thought was 'weak'.
In the end, Jia Yi was murdered inside of his Workstation while he attempted to recode a software that could've made fighting the Aliens easier.
When Jia Yi opens his eyes there's a man discussing with him how much of a waste it would be for him to die; next thing he knows he's World Hopping.

I must make everyone happy? How do I accomplish that? You want me to make that vindictive backstabber happy? Dream on.
Wait, why are these two incessentally bothering me? I'm obligated to bring happiness to everyone but I won't sacrifice my body to fulfill that!