Japanese title: 最凶の魔王に鍛えられた勇者、異世界帰還者たちの学園で無双する
Publisher’s official English title: A Hero, Trained by the Most Evil Demon King, Fights in a School for Those Who Have Returned from Another World
Publisher page: https://firecross.jp/hjbunko/series/438
BookWalker page: https://bookwalker.jp/series/321839

Volume 1 cover:
Volume 1 cover

@Ingraman
lol, totaly agree.
Funnel Bjorkoe

@Lily-Garden This is the kind of title I want as part of my physical collection...!

I saw the title, paused, thought, "That's Dahlia's friend, right? OH MY F-ING GHOD!!! want want want want and clicked the link to open the topic and check and make sure.

So, um, yeah.
Count me in.

Admittedly, if it weren't for the most recent pre-pub posting, I wouldn't be reacting quite this way.
But it made it clear that fashion is her geek.
I can get into that.
Stories about creative people getting into the stuff they create, I really enjoy. (Provided the author has done their research properly...)

@Terrence
You can safely remove “Seinen” because that’s a manga demographic.

The artist is “Gaou”. I’m not familiar with many V-Tubers but his profile in the back of the book does indeed mention designing Minato Aqua. They also have an artbook out:

Selfie Girl cover

@tahu Might I suggest you make a topic for each of those titles (assuming there isn't one already for them), it's difficult for people to show support for a specific title when you've listed 4 of them.

Also while there's no standard template, it's helpful for people if you could list the publisher, the number of current volumes released in Japan (maybe the year publication started), if it's ongoing, completed, stalled, cancelled, a summary of the series and maybe a little blurb about what specifically drew you to the series.

Otherworld Nation Founding Chronicles has a topic, though based on the replies it seems like the LN stalled at 4 volumes and was cancelled.
https://forums.j-novel.club/topic/1180/異世界建国記-isekai-kenkokuki

異世界に転移したら山の中だった。反動で強さよりも快適さを選びました。
Isekai ni Ten'i Shitara Yama no Naka Datta. Handou de Tsuyosa Yori mo Kaitekisa wo Erabimashita.

@wellwisher Chapter 11 is where he's fighting a guild in the dungeons. I def felt the manga may have watered things down.

Read the WN a bit, well, as much as has been translated. Starts off well enough though hard to tell how it turns out. Unfortunately, chances of getting licensed are very low.