Douluo Dalu 2: The True God King - Chapter 3: [DD2]:

When his family company went bankrupt, Qi Lin sought help from relatives and friends he had helped before.Qi Lin: “Brother Wang, I treated you to breakfast for three years in high school~”Wang Cheng: “I, Wang Cheng, am not an ungrateful person. Bring me 1000 bowls of hot dry noodles for my old classmate.”Qi Lin: “Xueyao, do you remember when you were looking for a job, you stayed at my villa for three years?”Qi Xueyao: “I paid you three years’ rent for a 10-square-meter room. Why don’t you move your whole family in?”Qi Lin helped these people back then, but now they’re indifferent to him.Disheartened, Qi Lin jumped from a high-rise building in despair.He thought he would die like that, but when Qi Lin opened his eyes again, he found himself back in his third year of high school.The family company hadn’t gone bankrupt, and he was still a rich second-generation playboy.Recalling the scenes after his family went bankrupt, Qi Lin sneered coldly.Since I was all about fooling around and waiting for death, why not become a rich second-generation with no morals?

[*Ding*

Jin-woo had never considered himself someone ordinary. Okay, that sounded like an arrogant thought to have, but he was definitely unordinary. He would always be reminded of this whenever he had to take his antipsychotic medication for his schizophrenia. It also didn’t help that he was starting High School with the whole school knowing this fact because of his little… slip up? Of course this comes with bullies targeting him, but that wasn’t new. Jin-woo was determined to do his best to avoid them and not draw any unnecessary attention to himself… But that was impossible as some God seemed to have cursed him to be in the same class as his bullies, and even that nosy popular girl who won’t stop talking to him in front of everyone. How many times did he have to say they weren’t friends, much less childhood friends for her to leave him alone?! However, what might be worse than being in the same class as your bullies and that annoying girl, was being in the same class as your bullies and that annoying girl, while being trapped in there because of a zombie virus outbreak… and somehow being the cause of it? Should he stay, or chance it with the hordes of zombies outside? What would you do?

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.

- Description from Novelupdates