Hell's serpentine overlord (Hazbin Hotel Harem X male Obanai reader)

Training arc: Battle of the Pillars

You know the saying "never Judge a book by it's cover" ?

Well Charlie and Vaggie learned that you also must not judge a simple child's game turned training for war.

Especially when said training involves the fastest sinner demons, second only to Tengen Uzui and possibly Zenitsu.

(I know some of you Tengen stans are going to hate me here but I think Shinobu is faster than Tengen considering Douma is way stronger than Gyutaro yet was still tagged by Tengen, I will hear no arguments to this.)

What started out as a simple tag exercise with Shinobu and Kanao turned into a very strong relationship between the duo's face and the wooden floors they were on.

Vaggie belived she was the fastest flier in her squadron of exorcists but the butterfly sisters swiftly shot down that belief.

Every time she went in to tag Shinobu or Kanao, the butterfly demon would quickly dodge or turn away.

They were so fast that it almost looked like they were teleporting.

Charlie didn't fare better than her lover considering that despite her slender and fit figure, she barely used that body structure for anything athletic.

Kanao had took the liberty of practically dancing around her when she took a break and occasionally kicked at Charlie when she took a breather during the test.

Charlie even released a bit of her demonic magic in frustration, something she only did for bastards like Valentino and Adam.

But that wasn't worse of the literal Hellish speed training. After the first day, the trainers did a swap and now Muichiro and Yuichiro were their trainers.

Suffice to say, they were not ready for such a beatdown.

The Tokito twins focused on striking speed rather than Shinobu's reaction and travel speed.

Muichiro and Yuichiro taught by constantly striking their opponents and having the reaction to block/dodge would teach them how to strike as well.

While Muichiro was a kind hearted boy, teaching the demons with a smile and kept motivating them.....

Yuichiro was not. Insults and toxicity flung from his mouth with each word he spoke to the assassins who didn't even want to do this training anyway. 

The more violent twin was even worse with Vaggie.

It was no secret that he hated the former exorcist as he shamelessly backhanded her and launched her through the building.

Even Tengen was more merciful than Yuichiro. At least the Sound Pillar took the time to give them legitimate advice.

What made the beatdown worse was that the attacker was smaller than a child. That was the humiliating salt that was sprinkled all over their wounds. 

Muichiro and Shinobu were the only ones capable of calming the murderous assassin down.

Now we see Yuichiro punching and kicking at one of the assassins who barely could keep up with his attacks.

Yuichiro kicked the man in the gut making him keel over in pain as he glared over the cannibal's pathetic form.

Yuichiro: Get up, you worthless sack of meat before I slit your throat with my claws!

Cannibal: I can't......I just can't! I'm sorry........

The young assassin could only glare at the man as if he was the most pathetic thing in the world.