Renako Amaori endured severe bullying in middle school after rejecting a popular girl's invitation, resulting in complete social withdrawal where she isolated herself in her room playing video games. Determined to escape this past, she reinvented herself for high school with her younger sister Haruna's help, studying fashion, makeup, and social etiquette to create a new, sociable persona. She chose Ashigaya High School specifically because it was distant and no one knew her history. Petite at 158 cm tall, Renako has vibrant pink hair styled in a short bob with signature black hairpins. Her expressive purple eyes often reveal her emotional states, shifting from enthusiasm to anxiety. During her isolation, she had long, messy hair and appeared unhealthily skinny, contrasting with her current school uniform appearance that retains a slightly disheveled charm. Renako projects a carefully constructed image of a bright, popular girl, masking her naturally introverted nature and tendency to become overwhelmed socially. Her bullying trauma left deep-seated low self-esteem and a fear of rejection, fueling chronic self-deprecation and doubts about her friendships' sincerity. She initially avoids deep connections, preferring relationships without intense emotions. Yet, she possesses a strong will to achieve happiness through her own efforts and seeks a "life partner" for complete honesty. When comfortable or agitated, her original personality surfaces – rougher, passionately verbose about gaming (especially FPS titles), and snarky in internal monologues. Ironically, others perceive her as a genki girl and inspiring wild card, unaware of her inner turmoil. Her high school life began by successfully befriending Oozuka Mai and joining her popular circle. The strain of maintaining her facade led her to seek solitude on the school rooftop, where a misunderstanding caused Mai to believe Renako was suicidal. This incident nearly resulted in both falling off the building but allowed them to share hidden insecurities and forge a genuine bond. After Mai confessed romantic feelings, Renako rejected her to preserve their friendship, leading to a "match" where they alternated acting as lovers and friends to convince each other of their preferred dynamic. Renako then entered a temporary two-week relationship with Koto Satsuki after accepting a confused confession, during which they discovered each other's secrets and shared a kiss. Satsuki's rivalry with Mai over Renako escalated until Renako intervened to reconcile them. Later, Sena Ajisai developed feelings, confessing after a hot springs trip and creating a love triangle. The stress caused Renako to retreat emotionally, but collaborating with friend Kaho Koyanagi on cosplay activities restored her confidence. After reflection, Renako chose to date both Mai and Ajisai, marking a significant step in confronting her feelings and reducing her self-deprecating mindset. Despite these romantic relationships with girls, Renako consistently denied her sexuality, rationalizing her attraction as situational. By Volume 6, her focus shifted to navigating her role as a reliable older sister when Haruna started skipping school, prompting the "Quintet" friend group to investigate. Her birthday is March 3rd, blood type A, and she enjoys sweet foods like taiyaki. Academically and athletically, she performs average to poorly compared to her top-ranking friends. She owns a PlayStation 4 (nicknamed "Four-kun") and Nintendo Switch, with gaming serving as a major comfort activity during stress.