Nano machine has a whole verse with 5 novels and 4 protagonists. This is my power scaling based on my comprehension of the story feel free to correct me if I am wrong 🙏 🙏.
My current scaling for the Hanjunggeolya verse
I've been seeing a lot of different takes on the scaling of the Willful Masters, so I wanted to lay out how I personally scale the top tiers.
Important: I'm prioritizing novel statements and feats first, since they're the primary source material. I'll also take the wiki's descriptions/statements into consideration, but I won't treat the wiki as more authoritative than the novels.
🔴 Cheon Ma — High Multiversal
Cheon Ma is the clear peak of the verse.
Willful Masters already possess infinite will, allowing them to manipulate their universe and, depending on the individual, its parallel universes. However, Cheon Ma is portrayed as being on an entirely different level from ordinary Willful Masters.
The biggest feat is in Descent of the Demon God, around Chapter 230, when Cheon Yeo-Woon's existence begins triggering Ascension toward the Beyond the Boundary. Cheon Ma intervenes and suppresses the will of the dimensions/Beyond the Boundary itself with his own power.
That's not simply overpowering another martial artist — he's interfering with the dimensional laws governing the realm itself.
On top of that, Cheon Ma is repeatedly portrayed as the strongest existence among the Heavenly Demon lineage and is capable of suppressing multiple Willful Masters.
Scale: High Multiversal
🟠 Cheon Yeo-Woon — Mid Multiversal
Yeo-Woon is where things get interesting.
By EOS, he's a Willful Master, meaning his will can directly affect reality rather than being limited by conventional martial arts.
He can transcend conventional space and time, and Willful Masters can manipulate their universe/parallel universes through their infinite will.
But the biggest reason I place Yeo-Woon above Jin Woon-Hwi and Ye Mumu is Cheon Ma's own statement.
Cheon Ma specifically acknowledges Yeo-Woon as the only person capable of barely handling him.
That doesn't mean Yeo-Woon is equal to Cheon Ma, but it's direct comparative evidence that he's operating significantly closer to Cheon Ma's level than the other Willful Masters.
So when you combine:
His Willful Master abilities
His EOS feats
His transcendence of conventional space-time
His ability to interact with higher-dimensional phenomena
And Cheon Ma's direct comparison
I'd put him at:
Scale: Mid Multiversal
🟡 Jin Woon-Hwi — Low Multiversal
Jin Woon-Hwi also reaches the Willful Master realm, meaning he receives the same fundamental reality-manipulating abilities associated with the realm.
However, I don't see enough evidence to put him on Yeo-Woon's level.
His enormous experience and sword-related abilities are obviously ridiculous, but experience ≠ automatically greater Willful Master power.
The realm itself is based heavily on realization and will, so simply having existed longer doesn't necessarily mean you've surpassed someone with a vastly stronger will.
Scale: Low Multiversal
🟢 Ye Mumu — Low Multiversal
Same general reasoning applies to Ye Mumu.
He's a Willful Master and therefore belongs in the same general tier of existence, but there isn't enough evidence IMO to place him alongside Cheon Yeo-Woon or Cheon Ma.
His physical strength and martial prowess are absurd, but Willful Master abilities aren't simply about punching harder. Reality manipulation, willpower, transcendence, and individual mastery matter.
Scale: Low Multiversal
My current hierarchy
Cheon Ma — High Multiversal
⬇️
Cheon Yeo-Woon — Mid Multiversal
⬇️⬇️
Jin Woon-Hwi ≈ Ye Mumu — Low Multiversal
I'm not claiming this is objectively the only possible interpretation. I'm prioritizing the actual novels and their statements/feats, while also considering wiki information where it helps clarify the cosmology.
If someone has novel statements that contradict this scaling, especially regarding the Willful Master realm, Beyond the Boundary, or Chapter 230, feel free to share them below. That's the kind of evidence I'd actually be interested in discussing.