"Teekyū" is a fast-paced, absurdist comedy anime centered around the chaotic and nonsensical antics of the girls' tennis club at the fictional Nasumatsumoto High School. The series lacks a conventional plot, instead relying on rapid-fire jokes, surreal humor, and exaggerated character interactions. Each episode is approximately two minutes long, contributing to the show's frenetic energy and brevity.

The main characters are four high school girls who make up the tennis club, though their involvement in actual tennis is minimal. Kanae Shinjō, the club president, is loud, brash, and often the instigator of the group's bizarre activities. Marimo Bandō, the vice president, is calm and collected but frequently gets dragged into the chaos. Yuri Oshimoto, the club's treasurer, is shy and reserved, often serving as the straight man to the others' antics. Nasuno Takamiya, the newest member, is wealthy and aloof, adding an air of eccentricity to the group.

The series thrives on its lack of continuity and logical progression. Scenes shift abruptly, with the characters engaging in random conversations, absurd challenges, and fourth-wall-breaking humor. The humor often stems from the characters' exaggerated personalities, rapid dialogue, and unexpected twists, such as sudden shifts into parodies of other genres or media. Despite the lack of a cohesive narrative, the interactions between the characters remain the driving force of the series, with their chemistry and comedic timing providing the core entertainment.

"Teekyū" also features recurring gags and running jokes, such as Kanae's obsession with curry bread, Nasuno's wealth and detachment from reality, and the group's frequent misunderstandings and over-the-top reactions. The series occasionally introduces secondary characters, including rival clubs or school staff, but these appearances are brief and serve primarily to heighten the comedic chaos.

Overall, "Teekyū" is a series that prioritizes humor and absurdity over traditional storytelling, offering a unique and fast-paced viewing experience that relies heavily on its characters and their unpredictable interactions.