No bullshit harem - Check
No Random demon lord or world saving - Check
No relationship within cast - Check
While the characters are over powered, the story doesn't really focus on beating some big bad. A few times they get put into situations that limit their abilities. This anime is character centric, focusing on the our party's past, and present. Its a good character driven story. Its nothing amazing but better than 80% of isekai anime.
I really enjoy some of the creativity, and unique ideas explored in this anime like the math brawl.
Ultimately, I think the anime has a lot of different genres in play, like idols, and dungeons, and they dont seem to distract from the self contained narrative. Even the villain's are not just randomly bad people, they all have back stories to why they became the way they are currently in the anime.
Characters not developing is the weakest element. Not enough nuance character interactions between the cast. Then again I wasn't really expecting that. I was just satisfying my trash isekai taste but got something better.
If you are a fan of overpowers iseaki protagonist, with crazy fights and explosions then this is not the anime for you. Fights are not the forefront of this anime. Fighting takes backstage. This anime actually has likeable characters.
