"S.A" (also known as "Special A") is a romantic comedy anime series centered around the lives of high-achieving students at Hakusenkan, an elite private academy. The story revolves around Hikari Hanazono, a fiercely competitive and hardworking girl, and Kei Takishima, her long-time rival and the top student in their class. Hikari has been determined to surpass Kei in academics, sports, and other endeavors since childhood, but despite her efforts, she consistently ranks second to him. This dynamic forms the core of their relationship, blending rivalry with an underlying mutual respect.

The narrative primarily takes place within the Special A class, a group of the top seven students at Hakusenkan who receive special privileges and resources. The class includes a diverse cast of characters, each with distinct personalities and talents. Alongside Hikari and Kei, the group consists of Megumi Yamamoto, a kind and nurturing girl with a passion for cooking; Jun Yamamoto, Megumi’s protective older brother and a skilled martial artist; Akira Toudou, a cheerful and athletic boy with a carefree attitude; Ryuu Tsuji, a quiet and stoic individual with a talent for music; and Yahiro Saiga, a sharp-tongued and intelligent boy who often serves as the group’s voice of reason.

The series explores the interactions and relationships within the Special A class, with a particular focus on the evolving bond between Hikari and Kei. While Hikari remains oblivious to Kei’s romantic feelings for her, their rivalry gradually deepens into a more complex connection. The story balances comedic moments, such as Hikari’s exaggerated attempts to outshine Kei, with heartfelt scenes that reveal the characters’ vulnerabilities and growth. Subplots involving the other members of the Special A class add depth to the narrative, showcasing their individual struggles, friendships, and romantic entanglements.

Throughout the series, the characters face various challenges, both academic and personal, that test their resolve and strengthen their bonds. The competitive yet supportive environment of the Special A class serves as a backdrop for themes of perseverance, self-discovery, and the importance of relationships. The story maintains a lighthearted tone while addressing moments of emotional depth, making it a blend of humor and heartfelt storytelling.