One Piece: Seaside System - Chapter 8: Marine Based -

Following the death of the emperor, the Astanian Empire plunged into chaos. His two sons both aiming for the throne caused a civil war that divided the empire.In the midst of this conflict, Alaric was forced into conscription. He later joined the crown prince’s army as a company commander.He led his 100-man army into battle, fiercely fighting with the hope of a better future. Unfortunately, he was just too weak to cause a ripple on the battlefield.A single arrow to the head shattered his hopes and he died without even a proper burial.Just when he thought that everything was over, he found himself back to his younger self with his memories intact.Armed with his knowledge of the future and a system that awakened his dormant powers, Alaric began his journey to overcome his fated demise.

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.

Lu Zhiguang is not a cannon fodder himself, but his mission is to save the miserable cannon fodder.