Dragon King's Son-In-Law - Chapter 625: Small Demon King! Small Demon King!

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

Step inside if you dare, but be warned—this is no ordinary shop. Those who enter never leave the same… if they leave at all. A sinister force lurks within, fueled by a dark past and a thirst for revenge. The price? Twelve lives for twelve sins. As officials race to put an end to the bloodshed, the shop’s deadly grip tightens, claiming innocent victims one by one. Will anyone uncover the truth before it's too late? If you crave spine-tingling horror, heart-pounding thrills, and a mystery that refuses to stay buried, this book will haunt you long after the last page.

One-eyed Wolf Lecan is a skilled adventurer who has conquered many dungeons all over the world. He had been going solo for a long time, but in the last three years, he’s had a partner. That partner jumps into the black hole together with Lecan, and both go their separate ways as they fall into another world. Dungeons and magical beasts also exist in that world. After learning the native language, Lecan goes on a journey. Meeting a good teacher, Lecan studies medicine making and magic under that teacher, and begins his dungeon explorations for real.

[Congratulations. You have met the requirements to become a Cursed One! Your fate has been changed!]What did it mean? Ragna was a transmigrator, reborn into this world as a Cursed One. But what was a Cursed One, they were the demon spawsns aclaimed to be the son's of the devil himselfA black screen with white text appeared before him, and he felt a sense of trepidation.[ Request Accepted ][ Status Screen Unfolding ]Character Name: Ragna RingwoodTitles: Cursed OneAge: an hour oldSex: MaleRace: UnknownLevel: 0Exp:0/100HP: 5/10[Attributes]Mana: 10Strength: 10Agility: 10Vitality: 10Mana Sense: 10Bloodline: (Unknown)???????Skills: NoneRagna's eyes widened as he stared at the screen. He was a Cursed One, with unknown abilities and powers. The thought sent a surge of excitement through him.