Orange is a poignant age gap romance manga that tells the story of Naho Takamiya, a high school student who receives a letter from her future self. The letter warns her about the regrets she will have if she doesn't change certain events in her life. With the help of her friends, Naho tries to alter her future and prevent the tragedy that awaits her. Along the way, she develops a deep connection with Kakeru Naruse, a transfer student with a troubled past. Orange beautifully explores themes of friendship, love, and the impact of our choices. This manga is a must-read for fans of emotional and thought-provoking age gap romances.