Slaying Demons: Starting with Upgrading my Calligraphy - Chapter 507 - 443: Exclusive Tenacity Retention!_3

Klaus had spent his entire existence as a puppet, bound by the strings of fate. However, a miraculous turn of events granted him a fresh start. The remnants of his former constraints smoldered in the ashes of his past. Now, unshackled and determined, he resolved to forge his destiny according to his own desires. No one, not even a deity, would be spared if they dared obstruct his path. Klaus was ready to wield the sword of vengeance and carve his own fate in the annals of history.

Introvert!? Me!? The hell am I an introvert? I stay indoors all day because I am afraid of getting my butt kicked.Until I contract my beast, I won’t be walking freely. This is a promise I made to myself.My name is Ryder, and I am black-marked. The planet where I live is dominated by summoners. If you guessed it, then you are right—we contract beasts from the Astral Shadow Plain and summon them at will after successfully forming a contract.A mark appears on the left shoulder of every human after a period of maturity, a mark given by the beast that chooses you. There are five different types of marks—the brown, the orange, the red, the black, and lastly, the white.Of all the markings, I was marked black. I was chosen by a supreme demon monarch of the Astral Shadow Plain—the Dracogon.There was only a 0.5 percent chance for me to survive the contraction process. However, with a slight twist in the original outcome, contracting a creature from the black-marked plain was nothing compared to the catastrophe I caused shortly after—I opened a link between the beasts of the Astral Shadow Plain and the planet of humans, Terra.Everyone on my planet has been endangered because of me. The fact that no one knows when the link will trigger and cause a breach that pours mindless creatures into my world makes it all the more unsettling.Now, with no other choice, I have to find a way to resolve the mistake I made—alone, just like I caused it.

Instead of causing chaos with my knowledge of the original work, I assisted the protagonist.

I successfully completed the story and now planned to retire and live peacefully.

However, it seems the protagonist still needs my help.

An academy professor? That’s nothing much.

But why is the state of the academy so strange?”

Su Xiao is a cold-blooded teenager who’s seeking vengeance for the death of his family, yet things ended up badly for him.

As he was taking his last breaths, he heard a voice calling him from dimensions, it was a strange system reaching him, asking him if he wanted to be saved, to be Reincarnated.

He just needed to accept a contract, Su Xiao didn’t have any choice but to do so, but he didn’t know what he signed up for!!

Traveling through worlds, doing extremely dangerous missions, collecting special items, leveling up, and even killing Protagonists…

But Su Xiao wasn’t any ordinary Contractor, Su Xiao was a Hunter!

The MC crosses over to: One Piece, Tokyo Ghoul, Naruto, Fullmetal Alchemist, Attack on Titans…

- Description from Novelupdates