Title [4/5]

The title was the perfect choice for your story! The thing that docked one point down is because the title is too common. I always see stories entitled like that. Still, your title is good.

Description & Foreword [7/10] 
The description is good, and it is simply put. The problem is, it's just too short and plain. Try adding a few words. Don't reveal too much though.

Plot [19/20] 

The plot is not very common, so you can say it's unique. 

Flow [15/15]
The flow is really natural. It wasn't sloppy nor abrupt, and the story's pace seems to flow so well...

Characterization [12/15]
Even though the perspective is Mina's, I can't really put a finger on her. Her character isn't really described well. So is Jae's character, all the story mentioned is that Jae kicks Mina away during tests. I fell in love with his character though, I like the way he thinks. You just have to put a little more details to make your characterization better.

Grammar [15/15]
I didn't see any grammatical error, meaning, all spelling is correct, it can be understood, etc. Your usage of grammar is really good. 

Readability [5/5]
The choice of font, size and color are pefect!

Personal Enjoyment [13/15]
I really enjoyed your story. It's really cute. It was fluffy too. If I understood correctly, Jae kept kicking Mina's seat because the teacher said keep your everything away, right? I like that part the most. It was too cute. Although there's one thing I can't sem to understand. Is it in first perspective or third perspective? Overall, your story had turned out to be one of my classical favorites ^^