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Good points :
It's been spared from the biggest cliches you usually find in BL stories, that's pretty refreshing.
The characters are interesting, even the side ones who don't get a lot of screen time (there's only so much you can do in a 49mn anime).
The soundtrack is actually pretty good.
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Bad points :
The pace and developement felt a bit rushed.
The plot is pretty predictable.
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To sum it up :
You probably won't feel overwhelmed by strong emotions after watching this.
Lesson XX should be seen for what it is : a short and simple BL story.
