Thanks for making this short story.
Like Rednaxelus, I liked above all that everyone in this game makes mistakes, and only out of venial misunderstandings rather than malice; each character has traits (and romantic feelings tangled up with them) that could likewise lead to good or bad effects on another.
And I took the choices I'd have taken, and I also got Erika 2 as my first ending (and after having seen them all, I still liked it best). I think this isn't a coincidence -- your design works.
"The people that don't fit in will never fit in." All I have to add is:
That's not just true for high school. Rather, it's the Path of Now and Forever from Earth to Groombridge. Like Haru, I've found this belief more liberating than bleak. There's always some who do truly care who you are, in brightness or in error.