The Spearmaster and the Black Cat - Chapter 400Chapter .1

In one moment, he was walking down the street with his little sister—In the next, he had traveled to the world of One Piece, carrying a system that could extract, record, and fuse genes to cultivate powerful lifeforms.Thus began a leisurely and carefree life in the most chaotic world imaginable.When bored, he’d snatch a bit of heavenly tribute meant for the Celestial Dragons.When curious, he’d raise a few cute kittens and bunnies just for fun.When restless, he’d wander through the territories of the most fearsome powers in the New World.Life is beautiful—so why bother taking anything seriously?

Chen Rui, an otaku from earth, is reborn into a human body in another world, who falls into the legendary evil, brutal world of the devil called Mozu where humans are treated as food. He has to survive while facing horrors of the devil, violent dragons and a variety of powerful enemies by depending on a strange super system chip and his wits. Surrounded by Devil’s beauties such as black-bellied lolita princess, cold queens, violent dragons, charming poisonous devils …

Wanting to live in the Devil’s world is hard! Wanting to live in the Devil’s world as a human is harder! Wanting a human to be the devil’s son-in-law is hardest!

Let us see how a small otaku uses power and strategy step by step starting from an ordinary human to writing a legend as the devil’s greatest son-in-law.

Takahiro Nao, a 25-year-old drowning in debt and despair, lives only for his struggling family. Every sacrifice he makes is for them—until a selfless act costs him his life. Instead of the end, Nao encounters a Goddess of Benevolence who offers him a miraculous deal: “Live in a new world, and your efforts there will support your family back on Earth.”Reborn into the dead body of Naoki von Blackmore, the so-called “Failed Hero,” he finds himself burdened with the daunting task of saving the world by defeating the Demon King—all while supporting the family he cherishes. Armed with formidable powers yet haunted by his past failures, Nao steps into a dangerous realm of swords, magic, and ferocious monsters. Facing relentless enemies, harrowing trials of life and death, and an unyielding fate, he’s forced to confront the ultimate question: how far is he willing to go to protect the people he loves?Filled with emotional struggles, determination, unexpected humor, and a touch of romance, this story asks a powerful question to the readers: What would you sacrifice for the people you love?

‘Royal Roader,’ the game that I ruled as an overlord was ending its service. Shit! It was my life’s only pleasure.

The last day! I used all of my strength and in-game connections to defeat the final boss monster, Demon Heros.

As a reward, I earned a Marble of Wishes.[Please state your wish.]My wish? [Royal Roader’s renewal as reality.]I was just joking. I really only wrote it as a joke…