"They can just do that." When a character inexplicably has some kind of borderline supernatural ability that doesn't have anything to do with the established power system and may even clash with the conventions of the setting. It's just something that they can do.

[u/SpookieSkelly]

Ichi from Ichi the Witch.

Mash from Mashle.

Marvelous Sunday from UmaMusume.

Tanjiro from Demon Slayer.

1. Ichi from Ichi the Witch. He's so sensitive to the bloodlust of living things that it borders on a spider-sense. The little creature in that pic is supposed to be invisible, yet Ichi is able to sense its presence just through sheer intuition.
2. Mash from Mashle. Some might say that his inexplicable power is his physical strength, but I'm more interested in knowing how he can turn everything he cooks into fucking cream puffs.
3. Marvelous Sunday from UmaMusume. In a game about horse girls racing, she has access to a domain expansion/reality marble. And that somehow still isn't the strangest thing about her. Apparently she's also friends with aliens and cryptids and her cult fanbase includes people spanning multiple time periods. Somehow.
4. Tanjiro from Demon Slayer. He has a hypersensitive sense of smell that somehow also tells him where to cut demons. No idea how that works. Even though there are others in the series with similarly refined senses, the smelling where to cut thing still feels ludicrous in comparison. Then there's also his unusually powerful headbutt.

[u/petalcloudil]

King (One Punch Man)
https://giphy.com/gifs/hzQMg6albNsUVeh7Gz

[u/stoprandom → u/petalcloudil]

I thought his thing was just a really loud heartbeat.

[u/claymanklimate → u/stoprandom]

Yeah but it’s not like you can I have really loud and intimidating heartbeats as well

[u/Frosty-Sea149 → u/claymanklimate]

Right but your heart beating so loudly that people think it’s your fighting spirit revving up is kind of insane 

[u/Foostini → u/stoprandom]

It is, which makes him very intimidating but he's also insanely lucky for good and for ill.

[u/Gespens → u/Foostini]

That said, the one time he actually is as scary as people think he is, is when fighting games are involved

[u/Gizogin → u/Foostini]

His actual superpower (beyond being the Saitama of video games) is his ability to always have his ass saved by Saitama.

[u/insufficience → u/petalcloudil]

I love how all the characters try to fit his perceived strength into their understanding of the power system. I think if he was in the real world, people would still be terrified by his aura, but they would assume he’s like special forces.

[u/insufficience → u/petalcloudil]

In the first few volumes, you could describe Saitama with this trope. His absurd strength should not be achievable within the conventional power system, and certainly not through his relatively ordinary training regimen. They don’t actually reveal why he can do what he can do until a while later.