[Demon Slayer] Massive Upgrade

[Assassin]

I think no one here is arguing these characters are MHS+ because of their breathings techniques, but because the novels and databook state they move at "lightning speeds".



Because she was in the middle of the air and therefore unable to dodge, she was also unable to block as she got hit by an AOE attack, plus she was moving towards Zohakuten, thus from her perspective sound waves were moving faster than sound by an unknown magnitude (relative speed). She was still able to react though, as Zohakuten explicitly stated she "tensed up all her muscles" so she could resist the attack.
Curiously enough, every time someone got hit by these sound-waves, they were either in midair, or restrained by Hantengu.


He didn't, he literally blocked several dozen bullets after being shot by surprise, then he sliced a few of these bullets at the same time he was dodging and running through them, then he either dodged or blocked (the manga isn't clear enough to tell which one was it) more of them at point-blank. The only moment he kind of struggled with bullets was when he was charging towards Hairo and he pulled a gatling-gun out of nowhere, it should be noted that by that time Rengoku had taken some important damage from the explosion he tanked at point-blank, plus the fact he was running towards Hairo implies again the bullets were moving faster from Rengoku’s perspective, but even so he blocked a few of these and then we see him advancing towards Hairo while cutting the bullets in the process. I’d say the gaiden actually shows Rengoku had little to no problem when it comes to blocking or dodging bullets.


I think this is a hasty generalization. Considering Akaza was impressed by the fact that Rengoku could restrain him, I’d say he was frightened because he didn't knew if he'd manage to run away in time. So, he was most likely not worried about the speed of the sunrise, but if he’d manage to free himself before the sunlight could reach him.


There is little to no information on what happened there, we first see Muzan talking with Ubuyashiki, then the mansion is exploding, nothing else. We don't know whether the mansion was filled with explosives, which would mean Muzan was surrounded and therefore escaping was impossible; nor how far away was Muzan from the epicenter of the explosion, which is a vital point as the speed of the shockwave is highly dependent on the value of this parameter. There is also the fact that special gunpowder does exists on the verse, so there would be no reason to believe they didn’t used that against Muzan.
The same way you need solid evidence and information to upgrade a character or verse, you need solid evidence and information to do the contrary (downgrade them), and there is simply not enough evidence nor information about what happened when Muzan got caught into the explosion of Ubuyashiki’s mansion.

Another thing to note about Hantengu's soundwaves, is that they move faster than normal via demon aura. Tanjiro states against Rui that his aura caused the air to become thicker (denser) and heavier. Sound travels faster through denser mediums.

 

[CharlesZaGreat]

Agreeable