Overall it wasn't that bad and good enough if you want to binge-watch a short kdrama that doesn't make you think too much and it was quite fun.
The story had its clichés and boring sides at times but also at the same time it had its moments that might make you feel giddy. Also, the way it had so much diversity and had people from many different countries so that was something new to watch especially in a show with the typical school setting. The cast consisted of people who've acted before and people whose first acting gig was this one but I think they all pulled off their characters really well. I really enjoyed Youngjae and Minnie's acting since they were the reason I bothered to even watch it.
Not to mention the music was really good, loved the intro song a lot!!
The show had its flaws as well as strengths which grew on me as I watched more episodes. I don't see myself re-watching the whole thing anytime in the future but I might want to watch one or two episodes of it since it's a light and cheerful drama. Also, it's a breath of fresh air that anyone can watch in between watching stressful or shows that have a more heavy topic. So I would give it a 7/10 since I really enjoyed it but I didn't like some parts of it so thus I can't give it a higher score than this.
This series could've ended in one season but it seems like I have to wait for a season two now.