All of me

Mizuki hates school,you'd think that people in High school would be more mature then this by now,but they weren't.They hadn't left her alone since her freshman year,and it only keeps getting worse.
On top of that her brothers are back for the first time in years,they had chances to come back,but they always seemed too busy with something.
"I don't blame them for staying away,I want to run away sometimes too."
There's no rest for her anywhere.Except on top of an old abandoned warehouse,what happens when someone invades her place of peace?
Will he become her peace of ruin it?