It's more of him not using all his cards (considering those are black magics), I don't see a problem of him losing

He lose, a main character got a mana increase
He win, he got a mana increase.

win-win eitherway, nothing for him to get all serious

"Dumb" would be a genius level ability

Sure bro.

TLDR; Good for you, just stay dumb.

Btw,
Antman logic is fine, what is not fine is that the Antman's author/writer can't apply it correctly most of the time. The author often forgot about it.

That is the more healthy way (only until mouth).
Some people like it inhaling it till their lung, some only just inside the mouth.

My Grandpa is a heavy smoker (6 cigar per day) and he is the inhale till mouth only type.
When sent for routine health check, his lung was still healthy, the only problem that came from smoking was his throat and excess thick saliva (Smokers get this issue at some point).

That an ongoing quest.
Like my list of quest in Skyrim, never reducing.

I think those ancient powers are actually super important despite how the novel MC's read is saying they are just meh.
MC's only read the novel to volume 5,
those ancient powers probably make a big role much later in the novel.

This would push our MC to a protag position, when he learned only he got the power to solve, maybe a world crisis.

I think this series start in 2005~6?
About 18 years.

I still remember when my friend recommend this to me

Misha's brother (the one she mentioned here) is an evil spirit?

Phil is sus as hell + she triggered MC's flashback (It only happen with Phil)

Seriously where is this apartment complex
I don't mind if the rent is ten times of what I have right now.

they are to be collected for achievements

Not to mention how expensive it is to run AI like ChatGPT
And it's not even close to what needed to run characters like in this manhwa

3/10

to be eaten?

She a yandere thoo -5

Nah, I'm team Raven

Yeah, and not yet fixed even now

Was it?
When the country map was introduced first time (early in the manga), I noticed how similar it is to Japan.
So, I expect it to end when he conquered the whole piece of that japan-like land. (Because that's the way to realize Nobunaga's ambition)
I say while it was rushed, its a proper end.

Does the novel goes further than this?

Edit add:
From comment below by chelero "In the LN, the author ended when MC is crowned, so never will know I guess"

This manga should be the proper end by the author itself.

To monopolize the beastman harem

Currently they all work for the dad, not him

I see,
the route to Lucy is to live by the way of survival in a wooden construct in the middle of a forest.

Why,
Because it reminds Lucy of her life with her teacher.