What does it take to become the number one video on YouTube? It’s a question many vloggers have no doubt repeatedly asked themselves. But as one Japanese YouTuber named Jun just proved, all you need to hit the top is one rusty knife and a whole lot of polishing!

His unexpectedly popular (and oddly satisfying) video has already racked up more than 4.1 million hits since he uploaded it just 2 days ago, and once you see it you’ll understand why. He bought the traditional knife for $3, about ten times more than it was worth given its terrible condition, but determined to make the most of his purchase, Jun rolled up his sleeves and got to work cleaning, sharpening, and restoring the blade, and the end result is nothing short of incredible. See for yourself in the video below. It really is a cut above the rest.

More info: YouTube