I Became a Raid Boss - Chapter 3: Worst Boss -1

An ordinary (?) grandfather, Choi Chuntaek. In an effort to protect his granddaughter, he started the virtual reality game 'Arkstar.'

Then... he accidentally obtained a legendary class?

Being a neurosurgeon and then dying from brain cancer wasn’t on my to-do list, but I was handling it… right up until a nurse suffocated me with a pillow. Yes, unfortunately, you read that right.Not exactly the way I expected to go, but it got me here—to the Rebirth Bureau—where I get an offer I can’t refuse: pick any world to be reborn in, with the ability to build my character like a video game: loot boxes and even a class. Naturally, I pick the Naruto world, but not as some overhyped Uchiha or Hyuga. No, I chose the Yamanaka clan—underrated, overlooked… perfect.With my character build, I’ll become not just the strongest Yamanaka, but the strongest shinobi, period.The Shinobi world has no idea what’s coming—and neither do you. Let’s begin.###This story blends action, slice-of-life, comedy, and serious topics into a multi-dimensional journey.The MC is a genius, but nothing comes easy—he earns his power through hard work and strategy. Expect a lot of new jutsu, tactical battles, plenty of humor, good food, and even better vibes. If you’re into an overpowered yet smart protagonist, this is the story for you, so don’t hesitate any more and start reading!

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

Jian Wushuang was reborn in adversity. In order to get his revenge, he began to cultivate Heavenly Creation Skill. With the help of the Heaven defying cultivation method, Jian Wushuang gradually grew into a peerless genius from an ordinary practitioner. With a sword in hand, no one is his match. Using his extraordinary Sword Principle, he killed all his opponents and eventually became number one Sword Master from time immemorial.