I'm at Level 30, But I Can Slay Level-9999 Beasts in One Hit! - Chapter 1: The Era of Great Evolution

Leon Walker, the world-weary genius of modern world, is killed in a freak accident — the notorious Truck-Kun makes an appearance. Death is only the start. He finds himself reborn in a new world, Galvia, reincarnated into the strong but failing body of Duke Leon Moonwalker, one of the only three Grand Dukes of the Moonstone Kingdom, a minor but strategically powerful kingdom within Galvia. As Leon attempts to understand his new world, a strange voice resonates in his head. “Supreme Spouse System Activated.”.

Im-sol is an ordinary student who is about to graduate from college.

Hiding the fact that she is a fan of Ryu Seon-jae, the fifth member of the Idol group ‘Potato Pancakes’,

Right now, she is doing cosplay in public.

-BREAKING NEWS- Ryu Seon-jae, a member of the Idol group, ‘Potato Pancakes’, is dead!

Then one day, because of an accident, Ryu Seon-jae died and Im-Sol, who was in sorrow, accidentally picked up a pocket watch and made a time leap to the past, six years ago.….

Gray pants, white shirt, beige knit vest.

No matter how much she blinked and squinted at him, he was standing alive, right before her.

“Seon-jae, that’s Seon-jae. Ah, it’s him. He’s real.”

Ryu Seon-jae, a high school student who she only saw in the picture, was right in front of her eyes.

This may be an opportunity.

An opportunity to prevent Ryu Seon-jae from joining Potato Pancakes and becoming its 5th ‘unlucky’ member.

An opportunity to save Ryu Seon-jae, who died at the age of 23 with no luck because he took a wrong cold medicine.

Eighteen to live again, with only one goal.

It is to save Ryu Seon-jae!

To save the best in the past,

Im-sol’s struggling ordeal, ‘The Best of Tomorrow.’

I was summoned to a ruined world and received the ability to create various things. Since I don’t have a house to live in I will make a house. Since people are gathering at my house I will make a town. Since the town is being attacked by monsters I will make the strongest weapon and repel them. Using my infinitely charging magic power I will remake this world as I please.

Traveling through the world of Naruto, he is just a four-year-old boy who has no talent, no family, no blood, and no tailed beast.

Unexpectedly, after completing the Jain test, the system suddenly awakened.

Since then, he has drawn the glittering fruit, the shaking fruit, the dragon-killing magic crystal of fire, the magic eye of death, Geass, the blood of the ancestor giant, the eye of reincarnation, the eternal kaleidoscope writing wheel eye…

Also, Demon Sword Muramasa, Death Note, Longinus Spear, Godzilla, Zanpakutō*Kyoka Suizuki, Zanpakutō*River Blade, Natural Teeth…

- Description from novelbuddy