Sehun was terrified. Terrified of the way his mind works. The way he woke up at night sweating, gasping for air as if he had ran 10 marathons. The way he did not even know if some days were real or his dreams. The only thing containing him and his sanity was a little glass box, filled with every piece of his past, good and bad. And them. That one person who sent him over the edge, but also kept him safe.