MMORPG: Martial Gamer - Chapter 11: System Upgrade

Wang Yi was reborn into a world that swallowed the starry sky. After eighteen years of ordinary and extraordinary, he finally met the conditions on the eve of graduation from high school, activated his own golden finger, and signed in for the first time.

[Ding, congratulations to the host for successfully signing in, signing in for the first time, and signing in to the earth, special rewards will be given to reward the first karma of the Nine Tribulations Secret Code! 】

[Your genetic level has increased three times! 】

“…”

- Description from novelbuddy

“Ah…” She is so tickled that she is defenseless against his attacks. “You can choose to marry me or to die!” By then you will become the first person in history to die from tickling. “If you dare to reject me, I will make sure to ravish you until you yield to me.”

The Mad Cultivator follows the tale of Ye Kong, a rude and vulgar thug from modern day China. While collecting protection fees, he was sent to another world! By the time he realized what was going on, he was possessing the body of an idiot. Watch as Ye Kong struggles against fate to climb the road to immortality!

- Description from Novelupdates

I became the childhood friend of the protagonist in a novel. The childhood friend who died from taking drugs.