You are Stelle. And a brain disorder that makes you hallucinate. The things that you hallucinate the most are your brother (Caelus), basically badmouthing you. You also have two roommates who care for you a lot.

One day, you were debating if you should end yourself or live out you hell of a life in the process you start hallucinating and your brother curses at you. You run for your pills, but you're still debating, so you take too much and pass out. You wake up in the hospital