Iris is a romantic visual novel set in a junior high school during winter. The story follows Haruki Setohara, a third-year student, as he navigates his final year of school and tries to win the heart of one of several girls he meets. You can choose which girl you want to focus on, and your decisions will affect the storyline.
The game's story branches based on your choices, presenting new paths and opportunities. As you play, you can customize the visual design and sound effects, including music and voice acting for individual characters. Completing chapters unlocks extra content, such as CG artwork, background music, and a list of cleared chapters.