(Average+) Anohana: The Flower We Saw That Day

Series in one sentence:
This flat-chested little girl humping this teenage boy's crotch is definitely the same age, definitely.

Series in more sentences:
A group of childhood friends disbands after the death of its most loved and envied member. Couple of years later, the ex-leader of the group gets haunted by the ghost of said girl and becomes convinced that there's a wish that needs to be fulfilled in order to send her to the afterlife.
But first, he needs to convince his old friends that what he says is the truth.

It's a cute short story. And that's all it is. There are people who consider this series a dramatic masterpiece, but besides the background music and the 2 or 3 sentences uttered during an important scene, nothing made my heart tremble.

I'm not feeling most of the characters and their motives, but worse yet, the girl this story revolves around annoys me. She's this typical high-pitched, noisy, cutesy anime girl who loves everything and everyone. This isn't a personality, stop writing these types of characters.
The way this group of friends gushes over their inoffensive friend makes me believe we're dealing with a top example of a Mary Sue. These kids nearly kill each other and themselves over her and it's insane. Stranger yet, she's in every way the ghost of a dead preschooler, despite looking "grown up" to match the age of her aged friends, so I don't understand how the main guy is still charmed by her unchanged behaviour and wants her to stay on Earth. No teenager raging with hormones would have the patience for a person like that or obsess over an insignificant crush drenched in puppy love. I can't imagine 15 year old me going berserk over the ghost of someone I had a crush on when I was 5.

For what reason did this girl's spirit even appear grown up? The anime gives no reason. In combination with her youthful act, it makes her look like she's mentally challenged, for real. If her spirit had shown itself as her normal self... I still wouldn't have liked her, but at least her behaviour would've fit the look.

There's also no chemistry between her and the guy she supposedly has a crush on, while this is an important plot element. His relationship with the redhead had more depth.
The two lovers show off an older brother-younger sister relationship, which makes sense, since the ghost is officially 5 years old. Making the scenes where the boy gets an erection over her very inappropriate.

Hm. That has to be the sole reason she was made to look older; you can't have perverted scenes with a 5 year old.

Anyway, would not watch again. I didn't find the story exciting and didn't care enough about the characters to care for the drama.