A-Ranku Pâtî wo Ridatsu Shita Ore wa, Moto Oshiego-tachi to Meikyû Shinbu wo Mezasu.

The original story is quite good for yet another "leaving my party" story that is quite the trope nowadays. Here, an amazing "Red Mage" makes a Harem of talented adventurers (that, obviously, all fall in love with him), and together they climb the Ranks until involved in a world-saving scenario. Dungeon diving, rivals, black magic and more.

As an adaptation, it is somewhat disappointing in the visual department. The animation itself is okay.. but then you see still images from the actual episodes themselves being used in the Opening! So, you start wondering about the budget.. And while the style of this anime is good, it doesn't capture the gorgeous look of the source material (specially with the female leads). But it flows well and the (JP) voice casting is good.

EDIT: Sadly, as more episodes release, it is quite evident that a LOT of plot points were skipped and some gore-y and "inappropriate" elements completely removed (understandably)! Ones that gave this series a darker tone, but a distinctive personality. I'm not sure how I would feel as the creator, but it even rewrites some of the developments.. This isn't a proper adaptation, but a summary in parts, and takes the liberties to rewrite others.

Personally, I would recommend the Manga instead (if you prefer a more detailed and adult story). But Anime is always a much more digestible medium, and does away with what some would consider unnecessary.

After Bingeing loads of Isekai, Shonen, and Seinen types of anime, I found that "I left my A-Rank Party" to have a great story line and visual fidelity that had me wanting to continue to the next episode. It set in a fantasy world, like most of the dungeon themed shows, but offers a storyline to keep you entertained. "I Left My A-Rank..." This Adventure/Fantasy shows the Main Character needing to make a decision on his next chapter in life. This shows Yuki mentoring past students that helps build a good background on the character to get you interested on how he maneuvers on how he will lead his group. Overall, I think this is a good Adventure/Fan show, that is worth the time to watch.

What is it with anime writers? Have they never been in a relationship, so think Harem's are the ultimate relationship?

This is the story of another overpower protagonist who is pretty much an idiot. Everyone, but him, knows he is exceptionally powerful. It's a lazy trope.

His interactions with others is juvenile, and annoying. Especially around the women he is gathering to himself.

He, and his harem, go investigating dungeons that seem to be other worlds. This would be a fascinating concept, and an interesting story, but it's really only background information.

However, the reveal in episode 15 would have made for several excellent episodes, but is dismissed, especially as OP was directly responsible, and was responsible for what happened as a consequence. This is ignored.

The quality of animation is reasonably good, except when it isn't.

There is some fan service, with the usual large breasted women, but it's kept to a minimum.

I've watched a lot of anime and despite this being attacked as a harem (which it kind of is) it's still really good. It's very similar to shield hero or from common place to world's strongest. I can see why a lot of the female reviewers dislike it. Guys wish women would treat them this way and they would never treat guys this way. They women are loyal and love their male counterpart. The good guy wins and attracts a following of women lovingly devoted to him. There's no real relationship stuff like worlds strongest but it could go there in future seasons. I like that it's fast paced and so much happened in the first season. Other anime would take multiple seasons to get through what they did in one. I don't read any manga because I like watching more than reading. I feel like reading doesn't let you enjoy the show as much. I liked it tho, solid 7.5. Can't give it an 8 so I gave a 7 but it's a 7.5.

So this is one of those "X left my party, so Y happened" shows. That said, I am really enjoying this one thus far.

In short, our protagonist is a Red Mage (think buff/debuff magic) who resigns from his party as he's not getting the respect he's due. He joins up shortly with some students of his and they go on adventures. Stuff happens, etc.

That said, this has a LOT going for it. First of all, the characters are actually interesting and the voice acting is, for the most part, very well done (both in Anime and english dub). The animation is gorgeous and vibrant. The story itself is entertaining enough and easy to follow. The comedy portions hit at they need to.

There's a few things that make this really stand out. First, the protagonist is NOT a weak-willed ninny. A common trope for these shows is that the protagonist tends to demure in the face of his old party or in general. That's not so for our boy Yuke. Second, there are a few twists in this story that are just, well, delicious.

That said, the show isn't without issues. There's a few issues with the storyline in terms of plotholes (thus far) and it's not really too deep. That said, this show doesn't really waste time things that bring notice to them in any capacity.

Overall, this is one I recommend for one reason: Style, style, style.