I dropped this drama once, not liking the idea of substituting love with sex, and revisited it again when I am looking for a Japanese movie/drama to watch. After diving from the surface of many kissing and bed scenes into a deeper meaning this drama brings, you will find ideas to learn about how to distinguish love/loneliness on one side and sex/desire on the other side.

STORY
Japanese dramas may have the most twisted plots with the deepest meanings and Kuzu no Honkai is one of them. The character Yasuroka Hanabi is a realistic heroine for teenage/young adult girls to learn. A heroine, as she is able to overcome the teenage girl problems mainly by her thought process, as the viewers can see there are no any significant adults in this drama (older family members) who guides her to go past broken heart, despair, and loneliness. In the end, Hanabi is able to emerge to be a mature teenager who learned many facets of love.
Having watched a lot of dramas with typical heroine as damsels-in-distress being swept by knights-in-armor trope, this drama introduces us to a strong female character who is able to overcome significant issues by herself. By the end: 1) Hanabi never falls to be a victim of sex with 2 guys and a girl she has relationship with; 2) Hanabi finally steps out and terminates wrong relationship with 3 characters; 3) Hanabi is able to develop her thought process that become the main guidance to overcome her issues.
To add, I love that the role Awaya Mugi never develops into a pushy guy. Despite of initial Hanabi's decision to have an intercourse and Mugi's experiences with other women, Mugi never pushes Hanabi into this stage when in the end she stops it. Mugi respecting Hanabi's decisions on terminating sex and relationship is rare in movies/drama, where there are so many pushy, demanding, obsessive male roles out there
Finally, this is the only movie/drama so far that I DO NOT WANT the female lead to end up with the male lead. Matching Hanabi with Mugi will just create another cliche in dramas. Besides, particularly in this story, real coupling will just create more problems, as Hanabi and Mugi's relationship does not start as liking each other but more sympathy and despair complete with a clear termination contract. Therefore, I love the last scene where Hanabi walks out of the class straight passed standing Mugi (is he waiting or hoping?) and not even looking at him, to meet her female friends for a chick hangout together.

ACTING/CAST
The highest point is given to the female lead. I am amazed a young actress like Yoshimoto Miyu (she was 19 when the drama was released, possibly 18 when it was being filmed) could pull out compelling emotional acting as a virgin teenager in desire over her male teacher and jealousy at her female teacher. I gave 9 point not 10, as I did not see the male lead Sakurada Dori acted in the same level of quality of the female lead did. The chemistry is okay between them, not as lovers, but as contract partners or caring friends.

MUSIC
Music is okay, but unless a drama song gets stuck in my subconscious mind, I don't usually rate the music part high.

REWATCH VALUE
As I am more to a light-hearted rom-com drama/movie to rewatch in the future, I will not rewatch this drama again. Besides, I am way past teenage years that I have to visit this drama back to relearn about the values it brings.

OVERALL
Many issues facing by teenagers and young adults concerning love are explored in this drama. A must watch to any female who (does not matter if she is still a teenager or is older) to understand that she does not have to be a victim of so-called love, but being able to overcome the issue to be a mature woman.