After reading everything from ch 1 to 7 in one sitting, I gotta say, this series is pretty lackadaisical. The pacing is fast, like the author doesn't want to bother writing scenes that are too long, otherwise he might fall asleep from having to write his own series. Motivations, characters and plot are super wishy-washy, there's nothing interesting going on at all.
The only gimmick of this series is that the MC wasn't transported to another world, that's it, big whoop. Remove that and it's your bog standard action (harem?) high-school anime that were popular last generation.