There are plenty of stories about or dealing with kendo, but I was wondering, are there any series that dig into the art of kenjutsu instead/as well? I'm rather curious about what it's like and how it differs, and I honestly can't remember seeing a series that actually delves into it.

Kendo is more or less the training with bamboo swords and similar while kenjutsu is the use of real swords to actually kill people... So pretty much any manga where they use swords to kill...

Not sure if that helps...

~4400 manga completed
~1700 ongoing...

That's a very narrow view of it actually. Kendo and kenjutsu are both well-defined martial arts. Kendo is far more regulated and at this point is a "sport martial art" built around matches with strict rules while kenjutsu is much more about serious swordsmanship. In kendo you have to hit well-guarded points to avoid injuring your opponent, while kenjutsu aims to find and exploit weaknesses. But both are very complex and independent arts with numerous dojos and schools. It's not just "if they use swords to kill then it's kenjutsu", especially if you're looking for something that actually shows the art itself.

In my defense I was trying to narrow it down... But I do bow to your superior knowledge. m(＿＿)m
As for an example... maybe Jimi na Kensei wa Sore Demo Saikyou desu... which leads me to assume that "Kensei" is the term for a master swordsman, so maybe use that to find more to read?

~4400 manga completed
~1700 ongoing...

I'll have to take a look at that.

I'm not all that knowledgeable, I just read a few articles on a few occasions out of curiosity, and just watched a documentary on Amazon about katanas. Still, from what I've read, generally martial arts can be divided into "do" and "jutsu" arts. "Do" means "path" while "jutsu" means "technique". "Do" types, like kendo or judo or sport/tournament-style karate are very rule based, somewhat unique in terms of philosophy, and fairly careful about avoiding actual injury, while "jutsu" types like kenjutsu, jujutsu and some older styles of karate are much more about direct application, techniques taught specifically to bring about the most effect.

There's only two series I know of that at least in part looked directly at kenjutsu or jutsu-type martial arts in general: Realbout High School (which I've only seen a part of, but the main girl's instructor suggests she quit kendo and go see a certain instructor because she's more suited to kenjutsu) and Kenichi, whose instructors I believe are all teaching the jutsu styles of martial arts.

Quote from Oobaka-san

I'll have to take a look at that.

I'm not all that knowledgeable, I just read a few articles on a few occasions out of curiosity, and just watched a documentary on Amazon about katanas. Still, from what I've read, generally martial arts can be divided into "do" and "jutsu&q ... https://www.tellthebell.one/

Kendo and kenjutsu are both well-defined martial arts. Kendo is far more regulated and at this point is a "sport martial art" built around matches with strict rules while kenjutsu is much more about serious swordsmanship. In kendo you have to hit well-guarded points to avoid injuring your opponent, while kenjutsu aims to find and exploit weaknesses. But both are very complex and independent arts with numerous dojos and schools.