There’s a boundary that is impossible to cross.It’s Wednesday, on an abnormally hot day, Kyungsoo is listening to some random music played on his iPod, through his Beats Audio headphones. Eyes are staring blankly at nothing particular and Kyungsoo just breathes. The cool breeze coming from the opened window at the end of his narrow shared bedroom strokes his cheeks ever too gently. He thinks it’s almost perfect; the calming silence, sunlight drifting into the bedroom, and the upbeat music.Almost.Kyungsoo wants to open his mouth because clearly, something is stuck in his throat and he wishes he could say something but he has decided since that time he will never stick his nose into his roommate’s business. Title: The One Who Can’t Forget, And The One Who Can’t Leave Rating: PG-15 (hinted!smut)Pairing: Kaisoo, ninja!BaekyeolGenre: Romance, Angst, FluffWarning: May contain some minor grammatical errorsLoosely inspired from "Dannetsu Senjou no Kodou" by Ogawa Chise and "Wish You Were Here" by Avril Lavigne  Forewordexcuse me and my fail writing.