And antag has reverse-harem?

they are neither good nor bad. Just think of deities as mercenaries
Gods are more like high class mercenaries. They are test proven to get things done but expect overpriced transactions.
Demons are like mercenaries who like their job. They only ask for what the job is worth

Because Demons do it for cheap, gods made them a public enemy to stop them from ruining their profits.

You must have missed it but the chapter after (maybe 2) she said "I" she said "I am". But this is the first time with sentence structure?

unfortunately he couldn't even if he wanted to...
No feeling = no pleasure = no climax

In all fairness, mc STOLE that groups HOLY RELIC, depleted its divinity, and allowed them to "kill" him to escape

💢KILL💢

💢MURDER💢
💢KILL💢
Is the next one going to be less too?
💢DIE💢

smelling isn't the worst part. Bypassing the smell by breathing through the mouth leaves a terrible taste in your mouth as well

its comments like the one you responded to that make you know for sure that they are most likely a virgin...

... However,
I drank too much and the club was too dark

It doesn't matter how wet it is, if you can't use a motorboat, don't dock, it's just not fun

wish fulfillment can have evil or good connotations.

depends on how you look at it. Demons come in exchange for something to fulfill wishes. If a wish was to destroy the world then its possible that they would. If the wish was to keep their territory running well, that may happen.

you did it wrong. You're supposed to tie limit break in to knights of the round with the double attack skill

didn't miss beating off either but never did biceps??? WUT‽‽‽

he did say average. Most go all out war without the want for disguise or human intelligence. Strategic warfare completely changes story narration.
Kimetsu no Yaiba is unique in the aspect of guerrilla warfare.

even in rage you'd think stir the pot and maybe one of them becomes weak enough to assassinate during recovery or breather

the only thing NOT guaranteed is his role as investigator. By being the investigator he could easily create moments to pin the blame on MC. Given the description of how smart he is, he'd likely use a throw away pawn of the family from the beginning of his plans. Set was the one who probably got his sister abducted to begin with.

pulls out dick

Adenca isn't related to Samion. Samion was the family 1arm MC was born in, then took in a disciple who, changed his family name to Adenca when gaining power to restore the honor of 1 armed Daven
The spear arts family has no relation to the other two at all from what's been revealed so far. It's a strong family that rose to power between the time MC was executed (via starvation and thirst) and reborn in the Adenca family
The Halleim family is related by marriage, but also a subordinate family of Adenca from how it's written (my speculation), who want to overthrow the Adenca family (implications made with "nightmare" which Helleim's heir was a part of, the dragonoid forces, and the movements of elders in Adenca [possibly making use of each other])