Say I Love You is a heartwarming age gap romance manga that tells the story of Mei Tachibana, a high school girl who has never experienced love or friendship due to past traumas. When she accidentally kicks Yamato Kurosawa, the most popular boy in school, their lives become intertwined. As Mei learns to trust and open up to others, their relationship grows into a beautiful romance. This manga explores themes of self-discovery, healing, and the transformative power of love.