Kō Sakuragi, a 19-year-old university student, stands at 170 centimeters with a penchant for boyish attire, often leading others to misperceive her as male. Struggling with social anxiety, her reserved demeanor complicates interactions, prompting excessive apologies or outright avoidance—especially with strangers in public spaces or online gaming. Yet her emotions surface visibly, betraying her true feelings with ease.

A dedicated gamer, she immerses herself in video games, though anxiety hinders communication with peers. Her friendship with Naoya Nifuji sparks when he mistakes her for a man at a café, bonding over shared gaming sessions where she mentors his skills. Tension arises after Naoya discovers her gender post-restroom encounter, driving her into embarrassed seclusion.

Worried by her absence, Naoya consults his brother Hirotaka and sister-in-law Narumi, later locating her through Hirotaka’s gaming account. Their virtual reunion allows him to apologize, coaxing her to confess fears of rejection. Reconnecting, she tentatively joins Naoya’s social circle, confronting her anxieties step by step.

As their bond deepens, Naoya’s romantic confession marks a turning point. She embraces his affections, gradually integrating into group outings with Hirotaka and Narumi. Initial intimidation toward Narumi fades upon uncovering a mutual love for manga, while arcade visits and social gatherings chart her incremental growth.

Pivotal moments include a flare of jealousy upon misreading Narumi’s relationship with Naoya, later soothed by clarification. A shared umbrella during rain becomes a tender symbol of their connection. With Naoya’s support, she withstands longer social engagements, reflecting her evolving resilience.

Rooted in academia and gaming, her background omits familial details, focusing instead on navigating social hurdles, forging trust with Naoya, and finding belonging within a circle that nurtures her cautious yet steady transformation.