Chowol-geup Extra-ui Gongnyakjip

A disastrous beginning—god-tier progression! The protagonist, a jobless man barely scraping by with part-time work, drifts around like a wandering orphan. His only joy in an otherwise dull and unchanging life is the online game God-Forsaken World. To him, it’s more than just entertainment—it’s an escape from reality. Then one day, while immersed in the game, he hears a mysterious voice from nowhere. When he comes to... he finds himself inside the world of the game! You’d think that after being transported into a game, he would become a cool, powerful protagonist... but no. He wakes up as the Empire’s disgrace and failure of a third prince: Gilroshan Elro de Valt. And if things couldn’t get any worse, the moment he opens his eyes, someone tries to kill him! Trapped in the body of an overweight, pathetic prince scorned by all, the protagonist has one secret weapon—a strategy guide, the key to survival that only a veteran player like him possesses! With the stumbling prince, his loyal knight Carls, and his fearsome yet reliable mage mentor Tirvaen, a new adventure begins—one more intense than reality itself!
“Survive in the body of a good-for-nothing prince? It’s not going to be as easy as playing the game.”
This is an unpredictable fantasy full of laughs, battles, and non-stop survival action!(Source: KakaoPage, translated)