They could have a nice student romantic drama if only they ended with episode 6. The whole ep 7 was too tense and overall just too much (based on the fact that each episode went through important matters of life if I put it like this). It could have been poignant to explore more serious topics, but there were just several missteps. I liked how they ended the series in ep 6 and 7th ep was just a plus.
I would make the whole last episode as a special one, maybe a little bit longer, but I definitely wouldn't end a series with it.