My Muscle System in the Mage World - Chapter 26: Whirlwind

Condition 1: One yellow scarf soldier rune is satisfied

Condition 2: Kill 100 rune monsters independently

Condition 3: 5,000 times of training to kill a pig with a knife is satisfied

Condition 4: 10 Spirit Talisman Pills are satisfied

Rune unlock upgrade.

Your source runes have been promoted from ordinary quality [Yellow Turban Soldiers] to premium quality [Yellow Turban Warriors]!

- Description from novelbuddy

A 13-year-old deaf teenager living in the 21st century suddenly found himself as a young boy in Japan during the early 1900s. With two World Wars, two nuclear bombs, Hitler and many other disasters awaiting his future, he thought things couldn't get worse.Except it did.He found out later on that he had actually reincarnated into the world of Demon Slayer where man-eating demons ruled the night. He thought things couldn't get worse.Except it did.But hey! At least he had unparalleled talent, incredibly special eyes and future knowledge.How will the story of Demon Slayer change with the addition of this unique character? Will so many still die if the Hashiras had one more pillar in the final battle?Or will the story end on a much happier note?

While the blue light blossoms, the insignificant struggle at the bottom. He grasps the opportunity to change his fate and embarks on an unprecedented path…

He died at twenty-two—bitter, brilliant, and broken. But death wasn’t the end.Now, Noel wakes up inside a tragic fantasy novel he read long ago... as a nameless extra doomed to die before chapter five. But there’s a catch—this “extra” isn’t ordinary.Armed with future knowledge, a sharp tongue, and a magic talent that defies common sense, Noel won’t just survive.He’ll rewrite the story.Because in this world?The real genius never had a name—until now.