"Teekyū" is a fast-paced, gag-driven anime series that revolves around the absurd and chaotic daily lives of four high school girls who are members of their school's tennis club. Despite the club's name, the series rarely focuses on actual tennis, instead emphasizing the characters' eccentric personalities and their often nonsensical interactions. The narrative is episodic, with each short episode packed with rapid-fire jokes, surreal humor, and exaggerated situations.

The main characters include Kanae Shinjō, the club's president, who is energetic and impulsive but often lacks common sense; Nasuno Takamiya, a wealthy and aloof girl who frequently flaunts her family's wealth; Marimo Bandō, a quirky and unpredictable individual with a penchant for bizarre behavior; and Yuri Oshimoto, the most level-headed member of the group, who often serves as the straight man to the others' antics. Their dynamic is central to the series, with their contrasting personalities creating a constant stream of comedic tension.

The plot is minimal, with no overarching storyline or significant character development. Instead, the series thrives on its absurd humor, breaking the fourth wall, and satirizing common anime tropes. The girls engage in random activities, such as attempting to recruit new members, participating in bizarre competitions, or simply engaging in nonsensical conversations. The humor often relies on wordplay, visual gags, and exaggerated reactions, making it a fast-paced and unpredictable viewing experience.

"Teekyū" is characterized by its brevity, with episodes typically lasting only a few minutes. This format allows for a relentless barrage of jokes and absurdity, appealing to viewers who enjoy quick, chaotic comedy. The series does not aim for depth or emotional resonance but instead delivers a lighthearted, over-the-top portrayal of high school life and friendship through its unique comedic lens.