One Piece: I Ate the Munch-Munch Fruit and Swallowed the Red Line

[Dark Story] + [No Heroine, but Lots of Maids] + [Kills Everyone] After being sent flying by a truck, Luo En transmigrates to the world of One Piece and is beaten to the brink of death by Wapol right from the start! At the brink of despair, he awakens the Devouring System and sacrifices the tyrant, immediately obtaining the Munch-Munch Fruit: Conceptual God Form! He starts out as a conceptual god! Hunt pirates, strengthen himself, and punch the mountains and rivers into submission! Hunt the Marines, push his development further, and unlock ability slots! Every person he devours also grants him one of their core abilities at random! In the Drum Kingdom, I devour the medical witch and seize a century's worth of medical knowledge! On Little Garden, I secretly kill two giants, vastly increasing my physical strength and rising to the top in a single leap! The Six Powers? Easy pickings! Roaming the Grand Line, I become the nightmare of every Devil Fruit user! Crocodile's Sand-Sand Fruit? Enel's Rumble-Rumble Fruit? Akainu's Magma-Magma Fruit? They'll all become fuel for my ascension to the divine throne! At the Paramount War, I descend upon Marineford. I have only one goal: devour Luffy!