SCUM
a word that describes the main character. I can't talk about the anime without starting with him. One of the worst main protagonists I've seen in a long time. but his character is also the reason for all this nonsense happening. His character is bad but gives the writer space to use it to start a problem with other characters. This thing is not bad at all. we see it on lots of other animes where the characters are written badly for the sake of the plot. But, I expected him to at least do something in the final scene.
I loved the waifus here. especially Mizuhara. the best character in the show in my opinion. She is the reason I continued watching even after I losing hope in Kazuya. Ruka is a good character as well, but I did not like her first appearance. she left a bad impression at first but I began to like her afterward. which led me to think that the writer rushed her appearance -at least in the anime cuz I know nothing about the manga-. Mami-chan is the bitch character in the show. can't help but hate her, even though her character is well written. I think the thing that makes me think she is well written is how she is the only character in the main cast who criticizes Kazuya and sees him as I do.
I think the first ark where Kazuya and Mizuhara met and started to know each other was the best in the show. but it didn't keep up with the good start. I wanted to see the reaction of Mami after Kazuya saved Mizuhara. but we did not see a good conclusion to the ark. this is where the show's quality started to fall in my opinion.
other characters like the grandmothers gave the show some good comedy scenes. espicially on the hot spring ark and the ark after Christmas/new year.
speaking of arks, I think the anime has a bad way of splitting them, some useless arks took part in the anime that did not deserve. like Sumi Sakurasawa's ark. I don't think it added any value to the anime. at least not in the 1st season, it is obvious that the character will have more appearances in the 2nd season, I hope that she will be a good character, I cannot have an opinion of her since we didn't see much from her. but her having a whole episode for her in this season will be unforgiven if she turned to be a useless character.
it seems that the anime cannot give us a proper conclusion to any ark. including the final one. I expected to see a different reaction from Mizuhara after Kazuya's confession. but she let it slip as she did in every episode.
hope we see a good ending to the story in season 2 even though I doubt that. especially after I saw the manga readers' opinion on it.

DONT MIND THIS PARAGRAPH, IT IS JUST TO FILL THE REQUIRED LETTER AMOUNT