One Piece: I'm Destined to Be the Son-in-Law King! - Chapter 29: Roya Returns

A 13-year-old deaf teenager living in the 21st century suddenly found himself as a young boy in Japan during the early 1900s. With two World Wars, two nuclear bombs, Hitler and many other disasters awaiting his future, he thought things couldn't get worse.Except it did.He found out later on that he had actually reincarnated into the world of Demon Slayer where man-eating demons ruled the night. He thought things couldn't get worse.Except it did.But hey! At least he had unparalleled talent, incredibly special eyes and future knowledge.How will the story of Demon Slayer change with the addition of this unique character? Will so many still die if the Hashiras had one more pillar in the final battle?Or will the story end on a much happier note?

Survival is easy. Life is very difficult. My family wants not to live in humility, but to live a proud and glorious life. My family, will not be slaves!

- Description from Novelupdates

Lin An's life underwent a drastic change.The basketball under his bed had turned into a bleeding head, which would hop next to his pillow and hum softly by his ear at midnight. The subway racing into the station had become a gigantic lizard, opening its gaping maw, waiting for him to line up and feed it.The world was not as simple as he had imagined. Behind the bustle of the city, the Witch Hunter Knights roamed in search of evil wizards to slay.The ordinary worker, Lin An, inadvertently became a member of the Antler Witch-Hunting Knight Order, shouldering the glorious mission to protect humanity.He must be careful, careful, and then even more careful.Careful not to reveal his true identity as a wizard.…“Why Hunt a Cowardly Innocent Wizard?!”

Qi Ming woke up to find that he had transmigrated. He had become a disciple of the Green Cloud Peak, one of the twelve peaks of the Heaven Enlightenment Sect. Fortunately, the “AFK Farming Software” was activated and changed his life.

“Ding!”

“You had been AFK Farming for seven days in the game dungeon ‘Shu Mountain Ancient Path’. You have cleared the game dungeon seven times. You have obtained: 1 Seven Star Sword, 1 Sword Kinesis Technique, 1 Top-Grade Foundation Establishment Pill, and 630 Low-Grade Spirit Stones.

“Ding!”

“The Green Cloud Qi Refinement Art has been cultivated for a day. Your cultivation progress has increased. You will break through to the next level after 10 days of AFK Farming.

Qi Ming was tired of cultivating. It was too dangerous out there, so he could only cultivate through the AFK Farming Software every day in the sect.

Eventually, Qi Ming reached Foundation Establishment, followed by Golden Core, and subsequently Nascent Soul. He... became invincible?