I’ll Be the Male Leads Sister-in-Law - Chapter 556

What would happen if you found yourself in One Piece as a Side character ?What would you do if your cheats were not actual cheats, instead you got scientific knowledge. Would you accept your life as a side character? Would you stay low key and mind your own business? Or would you throw yourself into the plot and change it to your benefit? This is a story about a man that had those options.Blerd finds himself in one of his favourite animes , One Piece. If you seen an add offering transmigration services to other worlds don't click it! At best it's spam at worst it's real. Some things are better as a work of fiction. Why? Smart Isekai is an ad that has you choose an anime world and challenge it with No golden fingers no quick power ups. You have to use you brain to think of creative ways you can challenge the world with no cheats but as a Native. I chose to challenge the world of One Piece. Now I am really in One Piece how the heck am I gonna survive ?

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

Why is it “Hero” that “Savior” that? Why is it always the same happy ending? “Happy” “Good” “Perfect” endings? You know what? SCREW IT. I will give you all the worst possible ending possible? Why? Because I’m an asshole!

An ordinary person who has passed through the Marvel World to gain the phagocyte ability and began to devour superpowers, and became the king of Marvel!

There are many female lords. The protagonist has gradually become the king of the Marvel world from ordinary people. The initial ability is the physique that changes through traversing. It can devour and stabilises without any side effects. The system is only an aid, you can also cross the plane!

- Description from Novelupdates