MTL - Illimitable Until Death - ~ 150 very serious problem

When the land was occupied by demons, people had no choice but to flee to the sky. After transmigration, Ricky found that he had become the City Lord of a Sky City. He quickly became familiar with this new world and established a clear direction for survival, which was to resolutely engage in farming (kingdombuilding)! He would farm (kingdombuilding) diligently, develop vigorously, and then gallop through the skies. If anyone disagrees, then launch a great sky battle. Or a war!

[Free New Book] The predecessor of the Immortal God reincarnate and reborn in the third year of high school. Based on the many exercises in the memory of previous life, he practiced again from scratch. There are many traces and treasures left by his previous life. To explore, he has to re-enter the peak of the earth!

- Description from Uukanshu

What does it feel like when you have a best-selling detective fiction author for a boyfriend?

Whenever you offend him, he would look at you disdainfully, “A character molded after you could only ever appear in my novel as a deceased victim.”

Whenever you seriously offend him, he would threaten you, “The very next victim who dies in my novel would be named after you.”

Whenever you seriously, seriously offend him, he would add on to the previous threats, “Furthermore, the victim would have died at the hands of an extremely perverse and twisted serial killer, and would have suffered an extremely painful and terrible death.”

But, by a stroke of coincidence, if you happen to be this best-selling author’s editor, he need not resort to the above mentioned tactics. In fact, all he has to do is one, single thing –
-Delay the submission of his draft.

- Description from Novelupdates

A biker tries to save a cat on the highway and gets hit by a truck (Truck-Kun), he was rushed to the hospital but, due to internal bleeding, he dies only to be reborn as a cat, in a new world with a system.

In this new and vast world, he tries his best to get used to his new body and get stronger along the way. With his overpowered system and skills. To one day become untouchable.