Part Time Employee in Konoha - Chapter 1: Perfect Experiment

Cassian Ven Dyke, the bastard son of a powerful ducal family, grew up in the slums of Veldora under the care of his father figure, sword master Russel. When Russel passed away, Cassian was left with only a silver necklace as his inheritance. After putting it on, Cassian was attacked by three psychotic thugs who tortured him in an attempt to steal the necklace. Refusing to give in, Cassian was ultimately stabbed through the heart with the very same necklace. Instead of dying, he mysteriously vanished as the necklace lodged itself in his heart. Just before disappearing, he heard an eerie message echo in his mind:[True mana detected. Origin: Human...][Human detected. Compatibility with system: Confirmed.]

The world had started doomsday, and I struggled for a year, before I died under an enchanted beast’s claw. Heaven has given me another chance, back a day before the end happen. Will I be able to change my fate, and that of my loved ones? Now, I will start my journey on becoming the strongest on the planet that the Gods have changed into a game world.

Journey through the combined world of the Special Forces series and become the acknowledged bad soldier of the Iron Fist?

Don’t panic! The “Strongest Individual Soldier System” is here to help. Every time you upgrade a level, not only will your body be strengthened, but you can also acquire super skills. At the beginning, you will activate the S-level shooting skills, which will amaze the audience and overwhelm everyone! Thus, a vanguard that made the heads of state tremble was born…

He Chenguang: “Did you practice martial arts from the womb?”

High school team: “He is the scariest individual soldier I have ever seen, bar none!”

Lei Zhan: “It’s unlucky. In his hands, I’m like a three-year-old child. I can’t beat it! I can’t beat it!”

He Zhijun: “Xiao Lin, the future of Langya is in your hands, I will retire early!”

- Description from novelbuddy

Leon is an average high school student who likes to watch anime and read novels.
He's about to cross the street, only to be greeted by a truck and died.
But, he got reincarnated as Uchiha yet dead again because Itachi killed him.
Leon got reincarnated again as the grandson of the recovery girl.
He got kidnaped and tortured by All For One.
After his third death, he got reincarnated as a son of Bibi Dong.
In this fourth life, he wants to change his fate to become the strongest.

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