Hidden Blade - Chapter 9 A Priceless Life Is Easy to Obtain, But a Priceless Head Is Hard to Obtain

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

After crossing into the world of Doraemon, he became Nobita.

With an invincible treasure bag, the life of a primary school student is simply boring.

I am preparing to let Shizuka grow up as soon as possible, so that she can marry and go home as a daughter-in-law.

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Astronaut Liu Peiqiang: “The sun is about to explode! Who will help me if I give out 200 points~”

“Enlarge the flashlight, shrink the Earth, or shrink the sun and throw it away~”

The richest man, Iron Man: “There’s a purple potato monster who wants to kill half of the universe! I’ll give out all my wealth! Come and help!”

“Time stopper! You can stop the time in the entire universe, and you will kill him again! Perfect!”

“Well, is the time stopper used to kill people?”

“Can you lend me this thing?”

“I have a bold idea!”

“+1”

- Description from novelbuddy

I, Zatiel, Abyssal Lord, Ruler of Death and Destruction, Nightmare of Dys, have AWOKEN!!!!!.

His life contains events that can shake the universe:
-Fighting against Tiamat, Creator of Evil Dragonkind, in the first circle of hell, while billions of demons and devils butcher each other beneath them
-Start a World War against the Heavenly Race, and transform himself into a Golden Sun while he slaughters their greatest warriors, the Archangel.
-Enter the Final Gate and fight against the Outer Gods.
-Tearing the nine levels of Baator during his battles against the Prince of Evil, Asmodeus.

With his memories as a ruler of the Abyss and a Universal Existence, Zatiel will rise again.

A striking man of mysterious origin and peerless talent, he looks back at the world, in all its entirety, with utter disdain. And yet, in the treacherous and unpredictable ultimate formation of the Boundless Secular World, he guards a breathtaking ancient qin with broken strings, waiting silently for the destined one to arrive!