Title: 2/5
The title attracts the readers attention by evoking questions such as "Who is he?" and "What did the character do?" However, it is quite lengthy and vague; therefore it isn't as appealing as it could be. Try something shorter and more memorable, such as "If only I had used my mind..."

Poster & Graphics: 9/10
Your poster is attractive, presentable and professional. It clearly defines the main three characters and portrays the overall atmosphere of your fanfiction - love and heartbreak. I particularly like the effects on your poster, however I deducted a mark due to the fact the starting of your quote is almost invisible - try a lighter colour such as white, which won't blend in with the background.

Description & Foreword: 4/10
Although your description and foreword narrates the plot concisely and contains a brief dialogue between the characters - therefore setting the scene, it is rather difficult to comprehend. This is because of the changes in tense, for example:

"This story is about a girl  who thought that her boyfriend cheats on her but he does not. Then she finds another boy and her life will become happy again but her ex will find her then her life will get ruined again. And so many things will happen to Aimee, but who will she end up with? 

You could change this to the following:

"This story is about a girl who thought that her boyfriend cheated on her, but he didn't. Then, she found another boy and her life became happy again, but her ex found her and her life got ruined, again. And so many things happened to Aimee, but who will she end up with?"

However, even by changing the punctuation and tenses, you can see that this description is still uneffective. Try utilising a wider range of vocabulary and created varied sentence lengths in order to emphasise certain parts. Your forewords are also confusing, due to the fact not a lot of emotion can be conveyed through dialogues. Try combining the speech with sentences in order to portray emotions, thoughts and feelings. Well done though! You're clearly improving!

Originality: 8/10
Although love triangles are a typical, cliche feature of many fanfictions, your fanfiction has it's own style and unique quality. There is a certain flair about your fanfiction which makes it appealing and different in comparison to other, stereotypical fanfictions. I enjoyed the letter scene, as I have never witnessed, previously, a chapter dedicated to letters. I found that chapter a memorable, interesting chapter as it's main focus was between Aimee and Lee Joon. Well done!

Plot: 17/30
I think your fanfiction is enjoyable, however it seems too rushed. Certain scenes, such as the opening scene, need to be more detailed and lengthy. Try to use a range of connectives, vocabulary and punctuation to excite and engage your readers. Although your fanfiction is original and easy to read; it could be even more attractive if you presented it neater, provided more detail and utilised more language devices - rhetorical questions, pattern of three and metaphors are amongst some of the most effective devices you could use. I think there isn't too much thought behind each chapter, your character Aimee's constant change of emotions confuses the audiences as to what characteristics you are trying to portray. I role-play when I write my fanfictions, I think it will help you write naturally! However, I applaud your dedication, as you have already reached 15 chapters despite the lack of motivation! Well done!

Writing Style: 5/10
Your writing style is engaging and friendly, however there needs to be an improvement in terms of language and vocabulary. Try to show of your creativity through creating extended paragraphs to convey emotion rather than a simple dialogue. For example, instead of "Aish.. >,<" you could utilise language devices to convey that specific emotion. This would also help your readers comprehend the type of feelings you are communicating.

Grammar: 6/10
As you typed mostly conversation, your grammar wasn't too bad. The only corrections I noticed was the use of commas and apostrophes. Try and include commas in your sentences to provide short pauses, for example:
"Luna screamed then put her pillow on her head" --> "Luna screamed, then put her pillow on her head."
And remember "You we're so happy?" --> "You were so happy?" Because we're is an abbreviation for we are!
Well done though! There wasn't no major issues with your grammar!

Overall: 3/5
You provided a great read! It was interesting and engaging, however, I would advise you to take more time on your individual chapters in order to increase the quality of your written work. Try to change your conversational dialogue to a story format, with longer paragraphs to portray your character's feelings. This is also a great way to communicate emotions with your readers! Just remember the simple rules with punctuation and you will also improve your grammar! If you would like me to review your story once you've finished then let me know!

Final Grade: 54/90 = 60%