In Teekyu, the series highlights the unconventional daily lives of four schoolgirls who make up the entire membership of their school's tennis club. Kanae Shinjou, often bored, frequently bends the rules of physics to achieve her desires; Nasuno Takamiya, with her immense wealth, excels at steering situations to her advantage; Marimo Bandou engages in activities that could land her in trouble, like consuming underwear or abducting children; and Yuri Oshimoto, the youngest and most normal member, completes this quirky quartet.
Though they have an interest in tennis, the older members tend to prefer mischief over practice, leaving Yuri, the only one who truly knows how to play and is the most responsible despite her age, to handle her seniors' unpredictable behaviors.
The story unfolds as chaos ensues in this rapid-fire comedy centered around a tennis club that seldom plays tennis.