Sunny Omori, often referred to simply as 'Sunny' in OMORI, is the main protagonist and playable character in the psychological horror role-playing game OMORI. He is a reclusive, introverted boy who struggles with trauma, guilt, and depression following a tragic event in his past. Throughout the game, players navigate both his dream world as Omori and his real-life persona as Sunny, unraveling the mysteries of his relationships and the truth behind his emotional struggles. His journey is central to the game's narrative.