"Akkun to Kanojo" centers on the relationship between Akkun, a high school boy with a sharp tongue and a tsundere personality, and his girlfriend, Nontan. Despite his outwardly cold and dismissive demeanor, Akkun harbors deep affection for Nontan, often expressing his love in subtle or indirect ways. Nontan, on the other hand, is cheerful, kind-hearted, and openly affectionate, fully aware of Akkun’s true feelings despite his prickly exterior. The series explores their daily interactions, highlighting the contrast between Akkun’s tough facade and his genuine, often comedic attempts to show his love.

The narrative unfolds through a series of episodic chapters, each focusing on small, relatable moments in their relationship. Akkun’s over-the-top reactions to Nontan’s actions, such as her cooking or her attempts to get closer to him, often lead to humorous situations. His jealousy and possessiveness, though exaggerated for comedic effect, underscore his deep attachment to her. Nontan, in turn, finds Akkun’s behavior endearing and often teases him to elicit more of his tsundere reactions.

Supporting characters, such as Akkun’s friends and classmates, occasionally appear to add variety to the story. These characters often serve as foils to Akkun and Nontan’s dynamic, further emphasizing the uniqueness of their relationship. The manga maintains a lighthearted tone throughout, with occasional moments of sweetness that reveal the depth of Akkun’s feelings for Nontan.

The series balances comedy and romance, using Akkun’s tsundere tendencies as a central source of humor while also portraying the genuine bond between the two protagonists. Their relationship evolves gradually, with small but meaningful developments that showcase their mutual understanding and affection. The episodic structure allows for a focus on everyday scenarios, making the story relatable and grounded despite its comedic exaggerations.