Laconic:

Iyashite Agerun Saiyuuk Style is meant to, as the name implies, emulate the style from the (*****) anime of the same name, which while having been released in 2007 had a retro 80's/90's character design. If you're looking for a style that feels like it's from a divergent history where they just improved on the old retro designs, this might be up your alley.

Loquacious:

Creating specific anime styles isn't usually my main go-to but there was something about Iyashite Agerun Saiyuuk (or Karma Saiyuki) that really called to me when I was spending time looking for "scuzz" direct-to-DVD (or VHS) anime. And no, that thing wasn't the smut, which was, in my opinion, serviceable at best but I'm not looking to turn this section into degenerate critique. What appealed to me was how the art style, despite being a mid-2000's title, really felt like a throwback to 90's anime - or rather, what 90's anime might have looked like in an alternate history where they just improved upon their ideas.

If you're inclined, you might be able to find the old website for the OVA on the Internet Archive Wayback Machine where it was clear that this was for all intents and purposes a passion project. The site had bios, production diaries, faux interviews with the main cast and even flash game that has you solving puzzles in the café featured at the start of the anime. I'm sure it's not unique in that by any means, but considering the content, I thought it was pretty damned charming.

Also, outside of A Kite and Mezzo Forte, it has one of the best action scenes in a smut/scuzz OVA that I've seen (and there's arguments if those first two titles count, but that's a whole 'nother thing).

All that said, the only thing I've found that might be a downside for this LoRA is that the gens have a tendency to add the fun side-curls that Mayuko (above) rocks during the Journey to the West section of the anime. If you have trouble with that, I've had luck by throwing the following keywords into the negative prompt:

sideburns, muttonchops

Aside from that - it's a fun retro style out-of-box, IMHO. Hoping you like.

Iyashite Agerun Saiyuuk Style - v1.0