This review is all over the place, but here I go:
I am personally not a fan of of harems, but after watching this show, I am thoroughly convinced that I should give harems another shot.
First of all,
1) the protagonist is not a perv
2) the show hints that there will be ONE girl that the protagonist chooses in the first episode.
3) the show does not end without choosing anyone.
Seeing a show that is unique like this is a huge relief.
The story of the show is good. A boy has to tutor 5 sisters who are all different, but similar: each with their own unique personalities. I really loved how the anime shows how each girl is good, and by the end of it, I would be satisfied with whomever the protagonist chooses.
The opening and ending of the show is FIRE! I loved the soundtrack.
Overall, I had such a good time watching the show that I binged all of it in one evening. I HIGHLY recommend this anime to anyone who is into and is not into harems.