In classic Japanese style, they just picked the most unique story from the bunch.

The premise itself is very interesting. The drama portrays the consequences of going against social norms and loving someone you shouldn't. The portrayal is as real as it gets yet beautiful in its own regard. The love between the leads is something that I would consider to be as true and real as it gets. As in the male lead, he feeling of love and the emotions for a teenager are very well expressed and thoughtfully portrayed and play an important role in the story(as it should). For the teacher, she really played the role of a responsible teacher and adult yet occasionally getting swayed by her emotions which is a very real thing. People might dislike the male lead's mother due to her being such a strong resistance in the story, however her character was a very real depiction of a real life mother(specially a single mother with a single child).

The cinematography is classic japanese, simple yet beautiful and always revolving around life.
The music though is really good and adds to the overall feels of the story and also makes it memorable for a long long time.
Excellent production quality.

Overall the story is worth experiencing. If you have some spare time, or you are in search of something unique, give this a go and you will definitely like it(if not love it).