Angst~ Cute~ Funny~ Klance~ Sheith~ Shallura~ Keith~ Lance~ Pidge~ Hunk~ Shiro~ Allura~ Voltron~

Six years after she graduates, Katie "Pidge" Holt suddenly finds herself face to face with an old ally who needs her help. She is reluctant to help him, but with the sudden rise in crime within the Galra and an impending civil war between the Galra and Alteans, she and her friends are left with no choice other than to help him. Meanwhile, Keith and Pidge's relationship is tested once more as an unknown person starts plotting out their ultimate revenge for events that occurred six years ago, and this time, there are much higher things at stake. Friendships and relationships are tested as their plan starts unfolding, and many decisions are made that shatter hearts left and right.

Just as title says

For as long as Katie "Pidge" Holt could remember, the house next door had been occupied by an old lady. At the age of five she found herself with new neighbors that lived next door, two parents with two boys. What caught her eye was the youngest boy, his behavior captivating her at the age of 5 all the way until her high school years. But even after all those years of forming a friendship with Keith, their friendship was going to be put to the ultimate test when a not so nice boy with not so great intentions gets between their relationship and things spiral out of control quickly. Senior year of high school, dealing with her neighbor and feelings was going to be the death of her and she knew it.