So I'm a Dragon, So What? - Game System - Chapter 50: Vampy Father!

“Beast Forge? What the hell is that?”He thought while walking out of the alley. The streets were almost empty, with only the homeless wandering around, picking up anything valuable that was dropped. He walked over to join them, still thinking he needed to do this to survive. But as he bent down, a black screen appeared in front of him, with white text displayed on it.[Beast Forge system activatedUser successfully registeredScanning user... doneUser has not awakened, cannot use Beast Forge.Analyzing for possible solutions.... doneMission: Run 10 km before 00:00Reward: Force awakeningFailure: Loss of the Beast Forge systemWill you accept this mission: YES/NO]

As a promise, he went out into the world as an assassin. 3 years later, after becoming the Supreme Assassin, he gave up on everything he had and returned to the ranks of ordinary people. But one day, Kismet, a mystical game created by the National Research and Development had appeared.

Enigmatic hands, spectral frame, and one cunning strike just like the swing of the Grim Reaper. The Supreme Assassin takes on the mystical world, and how his legendary tales sets off, progressively ascending the altar to becoming the best.

- Description from Novelupdates

Nagasawa crossed to Naruto Universe and was bound to Konohagakure.If Konoha is severely damaged and destroyed, Nagasawa’s lifespan will be reduced.He panicked at the thought of the upcoming Nine-Tailed Demon Fox's attack , and the thought of Konoha getting destroyed left him in despair.Fortunately, while bound to Konoha, he can obtain templates of powerful characters.At the beginning, He got the Whitebeard template! Since it's the Whitebeard from the Summit War of Marineford, he can use Tremor-Tremor Fruit's ability and Haki.Facing the Tailed Beast Ball, which terrorized Konoha Shinobi, Nagasawa leaped and shattered the Tailed Beast Ball with one punch!