Chaos Sword Body Technique: The Sword God is invincible! - Chapter 2 - Ancient Immortal Scripture, Awakened in a Day!

In the next life time, he would absolutely not become an author.
He would once again be cursed to the danger of crossing over into a book.
During the time when he broke free of his shell, what he first saw was just the handsome, handsome male lead that he had written.
During the time when the male lead was pinching the small soft flesh of his neck, it was also his first time hearing the male lead’s voice.
“Return goods,” the male lead said in this way toward the vendor stall’s owner.
Pei Bufan: “…… meow?”

- Description from Novelupdates

John Browning, a former underworld assassin, went to attend his friend Angele’s wedding party but ended up meeting his former colleagues. Before he could think that the whole wedding ceremony was a setup to catch him, he felt dizzy all of a sudden!

At that moment, he knew that his lifelong friend had already betrayed him and sold him out. John was humiliated in front of hundreds of peoples and was forced to kneel in front of Thomas, the underworld assassin organization leader.

Within a few minutes, they beat him brutally, dragged him to some underground basement, and then locked him in a gloomy room.

John felt bitter when thinking about his friend’s betrayal. He laid on the cold floor for two days and died miserably. But his story didn’t end there.

…

In a world filled with magic and mystic powers, John Browning woke up in an 18-year-old boy’s body. Before he could open his eyes and see his current situation, he felt someone was dragging his body.

'How am I still alive?' He got puzzled inside.

But after a few seconds, John learned from the young boy’s remanent memories that he was transmigrated to a mystical fantasy game-like world filled with magic and mystic powers!

The protagonist, having degenerated into a “loser” after being unable to find employment, gets caught up in someone else’s attempt to commit suicide-by-train and ends up traveling to another world. The numerous cheat powers he demands from God are all granted to him. But contrary to expectations, these powers bring about disastrous consequences for the protagonist.

Having reincarnated into another world, the optimistic protagonist (Yuuri) starts his(her) heart-warming training days with his(her) teacher.