If you're averse to student-teacher romantic relationships, especially ones in high school and come out of nowhere in the middle of the series, I'd advise you to avoid this series like the plague. If it wasn't for that, I'd probably give this series full marks but if I had known in advance, I wouldn't have read it. The relationship between the main couple was very sweet, but the relationship between the high school student and a teacher put a huge damper on my enjoyment of the series.