MTL - Crossing to the Future, it’s Not Easy to Be a Man - Chapter 31 : The weak have no right to speak.

Life can be very unfair most of the time, and Christopher is someone who knows this very well.Being an orphan, his chances of achieving great things in life were close to nil. But things change when he meets his lover. However, a series of events lead to his death.But that isn't the end. He wakes up in the body of someone just like him in another world, and with a system, one with an incredible ability.With his newfound cheat, he completely sweeps his way through the world and beyond.Angels? Demons? Dragons? Gods? Their titles don't matter, because in the end they will only have two options. Submit or die.

A tree of 10,000 flowers, the world is the door.
The spells change a lot, but the hearts of the people are unchanged.

- Description from Uukanshu translation

This book is about how a famous web writer who specializes in doting genre falls in love with a Mr. cellophane writer who specializes in angst genre.

- Description from Novelupdates

In the early world of immortal cultivation, there was no physical cultivation among immortal cultivators. And a top bodybuilder who came from the earth has opened up a new path here and became the ancestor of physical training.

- Description from novelbuddy