Monika is a central character in the visual novel game Doki Doki Literature Club! She is the president of the Literature Club and is portrayed as an intelligent, confident, and popular high school student. Despite her initially friendly demeanor, Monika becomes increasingly aware of her status as a character in a game and develops a deep obsession with the player, leading her to manipulate and control the game's environment and other characters. Her actions are driven by a desire for personal freedom and genuine interaction, making her a complex and pivotal character in the story.