At first I wasn't so sure about this anime because the romance is between a 17 year old high school student and his 24 year old teacher, but the storyline sounded too good and funny that I started watching while also hoping that it wouldn't go too far. While there were a couple of questionable moments, I feel like it didn't completely overstep to where I'd stop watching. Overall, it was funny and the storyline was interesting enough to keep watching. I ended up seeing the whole series. It kept me longing for more, but it seems like it might end at 12 episodes? Will update if there's more, but the series is worth watching. I recommend it.