Hikari Miyamoto is the main character in the virtual reality game 'Summer Lesson'. She is a high school student who seeks the player's guidance to improve her studies during the summer vacation. Hikari is depicted as a cheerful and energetic girl, eager to learn and overcome her academic challenges. The player's role is to tutor and interact with her, building a trusting relationship. Throughout the game, Hikari's personality shines through as she gradually opens up, sharing her dreams and ambitions, making her a relatable and endearing character.