As you may have guessed, I wasnn't a great fan of the 3rd season, largely because the best characters all graduated at the end of Seson2! Maybe should have started this great drama from Mathayom 4!
So, why 'great'? It covers a myriad of Thai teenage issues (bullying, homosexuality, sex, Parent & Teacher-student relationships, cheating in exams (and on partners), drugs, fighting and more... and does so rather unflinchingly and non-judgementally - very rare for a Thai drama in my experience. The use of recreational drugs, while showing dangers of misuse and addiction, is balanced by also showing the euphoria felt by users and reasons for actually using illegal drugs in the first place.
All told well, and acted really well too through seasons 1&2 (bar a bisexual male character who is pretty annoying), by a well-assembled cast of young talent. Season 3 is dreadful though. No endearing characters at all really. Surprised/ disappointed they didn't make more more use of the graduates. Ah, If they'd only stopped after 2 seasons!
Just watched it all with subtitles, and hoping my Thai gets good enough to watch it without. Think I'm in love with Sprite from season 1&2, Great stuff