Sakura Kouno (河野 桜) attends Katagiri Senior High School as a member of Class 3-5 with Remi Ayasaki. Serving as the student council vice president, she demonstrates reliability, competence, and diligence in supporting council operations. Standing 163 cm tall, she possesses forest green hair, matching green eyes, and a noticeably curvy figure that sometimes attracts attention or envy from peers such as Kyouko Hori. Her standard attire consists of the school uniform, black tights in colder weather, white sneakers featuring green laces, and round-framed glasses. Reserved and thoughtful, Sakura often provides a calm, mature presence within her friend group. She exhibits kindness, responsibility, and a tendency to prioritize others' feelings over her own. However, she contends with significant insecurity and self-doubt, particularly about her self-worth and social standing. Initially, she envies friend Remi Ayasaki, perceiving Remi as more inherently likable or "cute," and occasionally feels out of place among more popular peers. Gradually, through friendships and experiences, she develops greater self-confidence. Proficient in baking, especially sweets like pink cookies, Sakura generously shares her creations. This skill becomes particularly evident during school cooking classes, where she frequently takes charge due to the culinary shortcomings of friends Kakeru Sengoku and Remi Ayasaki. She adopts a nurturing, almost maternal or older-sister dynamic with both Sengoku and Ayasaki within their social circle. A central storyline involves Sakura's unspoken romantic feelings for classmate Tooru Ishikawa. She quietly admires him for an extended period, regularly baking him cookies as a gesture of affection. Eventually, in chapter 28, she confesses her feelings but explicitly asks him not to respond. This decision stems from her awareness of Yuki Yoshikawa's longstanding affection for Ishikawa and Sakura's desire to avoid causing emotional conflict or disrupting group harmony. The unresolved confession marks a pivotal moment of personal growth, demonstrating her increasing willingness to assert her own emotions. Her relationships extend beyond Ishikawa. She shares a close, mutually supportive bond with Remi Ayasaki and maintains a calming influence within the group, such as mediating arguments between Akane Yanagi and Izumi Miyamura about their heights. She also bonds with Yanagi over a shared interest in manga. While occasionally troubled by Hori's jealousy regarding her figure, Sakura remains a generally well-liked and trusted figure among her peers, valued for her gentle and supportive nature. Throughout high school, her initial insecurities lessen as she forges stronger friendships and learns to navigate her emotions with increasing self-assurance.