Tell me some reasons why i should read this manga?

It's an Isekai without ecchi and an actual story line. The MC is smart too but not obnoxious. It does have a bit of a harem to it, but it doesn't bother me too much in this case. Although the updates are slow.

It's more of a gathering of girls then a harem? xD Either way it's really worth reading if you can suffer with a chapter a month ._.