Sunny Hikikomori is the main protagonist of the psychological horror role-playing game OMORI. Sunny is a reclusive, introverted boy who spends most of his time in his house, disconnected from the outside world. The game explores his inner world and struggles with anxiety and depression. As players navigate through both the dream-like environment of Headspace and the real world, they uncover his traumatic past and learn about the events that led to his current state. Sunny's journey is one of self-discovery, acceptance, and confronting his fears.