Though I would not normally critique something on it's objectionable content so heavily however here it is very present so it is an exception.
Here are my thoughts.
Our main story here is about a new teacher, Daisuke Aoki starting at an elementary school. The main girl, Rin Kokonoe in this story is known as a bit of a problem child in the classroom having caused other teachers to quit. Upon starting his new job as a teacher Aoki is teased by Rin often in shockingly sexual ways such as lifting her skirt only to reveal her gym shorts under them or writing a sexual phrase during kanji practice. Rin's behavior is very clearly a way to give the intended audience what they want. I'm sure the people who have these problematic tastes will enjoy this aspect a lot however to a normal viewer this can be interpreted differently. Either it is viewed as "just for laughs" (my own opinion on my initial viewing of it) or it is seen as just disturbing or creepy. It's not to say that Rin's antics are not relevant to the story as the series does focus on Rin's troubled family life and that does play into why my opinion is mixed on this one.
Very early on we find out Rin's mother is deceased and she lives with a man who was her mom's lover before her death. This leads to a lot more of Rin's heartfelt character development and Rin's behavior is often her yearning for the attention of Aoki in a way of "any attention is good attention". Rin's antics are frequently way too much. To the point at one point she actually sexually assaults Aoki on the bus to a field trip making for one of the most outright uncomfortable scenes in the whole series additionally she has at least two times in the series she feigns being preyed upon herself, once to blackmail Aoki and another to get his attention. Unfortunately for everything good this series has going for it, for every heartfelt moment there is also one that is disturbingly sexual in a way only the intended audience of this show will excuse.
Overall: I do not recommend this show to a majority of watchers, it falls short of it's potential in lieu of appealing to those who find it's female lead sexually appealing and it's genuinely good moments are too few to redeem this show. Had this series not been made with the intent of appealing to a specific sect of fans it "could have" been great. I could have only watched this series when I did, at a time where I could shrug off its sexualization of the characters as "goofy anime tropes" and not as much now that I am more familiar with the group of fans it appeals to.
Opening and Ending themes are still bangers though.
