Orange an story about love, loss, depression, self acceptance, time travel, and not to forget plot-holes. Now bear with me don’t get scarred and burn me at the stake yet when you see and 8/10
I will explain it all.

Story - 9
The story starts off with the introduction of one of our main character Takamiya Naho. A Sixteen year old girl who gets a letter in the mail form herself ten years into the future. She is first skeptic about the letter but when it predicts that an new boy named Naruse Kakeru would join her class and accurately describes the rest of her day she takes the letter serious and starts the follow its instructions. In the letter is stated that she must do everything in her power to make the new kid happy en watch over him what ever the costs are.

The story is very fresh and extremely addictive and gives a good twisted to the basic shoujo school stetting with the its time-travel theme but this is also where one of its biggest flaws lies.
Time travel in any story is difficult because it brings a lot of complicated stuff to the table, they try to clear it up by nonchalantly trying to explain string theorie and time travel paradoxes but can never really convince the reader with its way to easy explanation.
And what also usually comes with time travel are what? PLOT-HOLES.
The methode how the letters are send back in time is never really explained its just brushed to the side with a made up excuse. Also how the letters got at the exact date when kakeru first went to to his new school is also left to the readers imagination. This gives the story almost and fantasy feeling while it is meant as a slice of life/drama/romance.

The story does redeem its self with have the gift of drawing the ‘feels’ out in a great way. At its most heavy moments sand will get in your eyes if you like it or not so BE WARNED.

Art - 7

The art is okay, very to be honest mediocre. The eyes and facial proportions of some characters are somewhat off and most panels lacked a drawn background. The characters are are drawn okay but the style is that of a 'basic' manga incomparable to the art of high rated manga like Berserk or Vagabond.

Characters - 8

An 8 for characters but how can you say this? Isnt this one of the manga's strongest points?
Well yeah if its about the character development of the three main characters ( Suwa, Kakeru and Naho) it gets an 10/10 in character development no doubt!

But as for the side characters ( Hagita and Azusa ) they get neglected to almost an unbearable degree. If i would ask what you know about Hagita and Azusa you would probably say that he has glasses and is bad at sports and that she is cute and that they have great chemistry but thats it.
And don't even get me started about Takako ( i even had to look up her name because when i saw her i only thought 'yeah that tall girl' such little impact did she have on the story ) i don't even really get why she is drawn in the first place she has literally zero development she was just a spectator nothing more nothing less, which is a shame because the way she is drawn and some moments she had, had soo much potential!!

The manga also suffers from ‘Standard Personality Disorder’. This is something most shoujo's have unfortunately.
You got the Jock, The always Cute and Outgoing one, The Tough Beauty, The Loveable Douffes, The kind of Emo-Handsome kid and the Cute shy main character.

But although some characters are not that well developed and some choices they make are doubtable they all do have one thing in common and that is that they are extremely lovable. Its hard at the end of the manga not to cheer the characters on for and happy ending, this is something only a few mangaka's can really pull off which such grace and kind of makes up for the lack of character development of some characters.

Enjoyment - 9

Even though i did got annoyed by the lazy drawing, plot-holes and somethimes predictable character behavior ( this being a shoujo ) it didnt have any influence what so ever on my enjoyment what in it self is a very big accomplishment. The characters are loveble and seem very realistic. The manga is very addictive and i dont recommend reading this before sleeping or during an exam week because after just 1 chapter you cant stop reading.

Overal - 8

It may be a very unpopular believe but the manga has got to many flaws that are just regarded by most readers because of the 'Feels'. This is the reason, at least i think so, why it is so damn high on MAL ranking. But even if this may be so i would recommend this to almost everyone just so you can say you have read it, even if you don't like reading shoujo’s.