One Piece: Pirate King? I just want to kill all of you - Chapter 3: Your Purity Is Simply Too Low

“You call yourself a hero? After your greed killed my sister?”What would you do if all of your friends, everyone you ever loved besides your sister, died in front of you?What would you do if, because you were weak, everyone hated you and considered you a Wasted, someone who hurt humanity's chance to survive extinction?Adam continued fighting despite this abuse, because he still had 1 simple goal: even if he was nothing more than cannon fodder or wasted potential, he would keep his sister safe.But then, it wasn't the Kaiju or apocalypse that killed her. It was the Exalted, the strong, the heroes of society.The people he was supposed to praise were the ones who took his last hope in life away before killing Adam as well.So, when he regressed with a villain system that rewarded him for killing Exalted...[First Exalted killed!][Artifact: The Mantle has upgraded to level 2!]

Due to an unexpected turn of events, Xia Fei consumed a Super Gene Optimization Fluid that bore no brand, expiry date, instructions or stated its place of origin.
Our story begins here…

Li Che had transmigrated and, after living nineteen ordinary years, he opted to accept his fate, marrying and having children, striving to support his family.But the moment his daughter was born....Through his daughter, he rose in status, and his life was no longer ordinary....With his daughter’s safe birth, you gained a Dao Fruit, “Immortal Artisan”.When his daughter turned one, safe and sound, you gained the Dao Fruit “Dragon Elephant Vajra”.At his daughter's age of two, free from illness and disaster, he gained a Dao Fruit, “Pure Heart”.By the time his daughter was three, lively and clever, he gained a Dao Fruit, “Chess Saint”.His daughter was four, five, six years old.......Li Che discovered that with each passing year of his daughter’s age, he could condense a Dao Fruit to enhance himself.From then on, Li Che harbored a simple and unpretentious wish.A Dao Fruit a year, quietly safeguarding longevity.As a father, he only wished...Starting from the warmth of his wife and child by the hearth, to peacefully protect his daughter's immortality.Silently condensing countless Dao Fruits.Henceforth cultivating his spirit, invincible between heaven and earth.

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.