"Gakuto no Vector" is a manga series that blends elements of science fiction, action, and psychological drama. The narrative centers around a high school student named Shougo Mikadono, who becomes entangled in a mysterious and dangerous phenomenon involving a strange force known as the "Vector." This force manifests as a swirling, vortex-like energy that appears unpredictably and consumes everything in its path, leaving destruction in its wake. Shougo discovers that he possesses a unique ability to manipulate and control the Vector, setting him apart from others and drawing the attention of various factions.

The story unfolds as Shougo is thrust into a hidden world of conflict, where individuals with similar abilities, known as "Vector Users," are engaged in a secret war. These users are divided into opposing groups, each with their own agendas and philosophies regarding the use of their powers. Shougo must navigate this treacherous landscape, forming alliances and facing off against formidable enemies while grappling with the moral implications of his abilities. His journey is further complicated by the presence of a mysterious girl named Aoi, who has her own connection to the Vector and plays a pivotal role in the unfolding events.

As the plot progresses, the origins and true nature of the Vector are gradually revealed, tying into larger themes of power, control, and the consequences of human ambition. The series explores the psychological toll of wielding such immense power, as well as the ethical dilemmas faced by those who possess it. Shougo's character development is central to the narrative, as he evolves from an ordinary teenager into a key player in the struggle over the Vector's future. The manga balances intense action sequences with moments of introspection, creating a dynamic and engaging story that delves into both the external conflicts and internal struggles of its characters.