Sakura Kōno studies in Class 3-5 at Katagiri Senior High School as a third-year student. She serves as the student council vice president, collaborating with president Kakeru Sengoku and mascot Remi Ayasaki. Her diligence and reliability shine through her role in ensuring tasks run efficiently. Physically, Sakura possesses forest green shoulder-length hair and matching eyes, standing above average height. She wears round-framed glasses and her standard school uniform, typically paired with black tights and white sneakers featuring green laces, alongside a prominently developed bust. Kind, responsible, and well-rounded, Sakura maintains a reserved demeanor about her personal emotions while showing consistent care for others. Deep-seated insecurities regarding her self-worth and appearance fuel envy toward her friend Remi Ayasaki, whom she views as innately cute and desirable. This lack of confidence heavily influences her early interactions. She develops romantic feelings for classmate Tōru Ishikawa, often baking him cookies before confessing. His rejection brings sadness, but she gradually moves forward by concentrating on friendships. This moment sparks her character growth, as she confronts insecurities and cultivates self-assurance, learning to value herself without external validation. Sakura shares an especially close bond with Remi Ayasaki, considering her a best friend. She also maintains a supportive friendship with Kakeru Sengoku, frequently adopting an older-sister role toward both. Her relationships extend to classmates like Kyōko Hori and Izumi Miyamura as she integrates further into their social circle. Her development centers on overcoming self-doubt and finding contentment. Through experiences like her unrequited affection for Ishikawa and her steadfast student council duties, Sakura builds resilience and a stronger identity, leading to increased confidence and deeper connections.