This is an ecchi harem manga, first and foremost. It frequently and inevitably abandons any kind of lore, story, character, or even genre enjoyment by lunging headlong into T&A shots. I don't really mind ecchi manga and anime, they have their place, but this feels like an isekai manga that constantly forgets that it's an isekai. All momentum gets constantly interrupted with hamfisted butt shots. This manga goes to amazing lengths to show female characters in revealing and exploitative situations. I realize "exploitative" is a bit of a strong word, but it really feels like the mangaka took the shortest path to reach ecchi, andthat path tramples right across lore and character development to achieve that.

TL;DR It's an ecchi manga. There are some well drawn butt shots. It had potential as an isekai, but throws it away. If I wanted an isekai, I'd read almost anything else first