Root Letter: Last Answer is a visual novel game that follows the story of Haruko Ichimura, an 18-year-old high school student who receives mysterious letters from her classmates. As she delves deeper into the mystery, she uncovers dark secrets and lies among her peers.
The gameplay involves reading through a series of chapters, each with its own unique storyline, characters, and choices that affect the outcome of the game. Players can interact with the story by making decisions for Haruko's character, influencing the narrative and its multiple endings.