"Majokko Club Yoningumi - A Kuukan Kara no Alien X" is a short anime series that revolves around four young girls who form a magical club. The narrative begins with the introduction of the main characters: Megu, Non, Pai, and Rabi. Each girl possesses a unique personality and set of interests, but they share a common fascination with magic and the supernatural. Their lives take an unexpected turn when they encounter an alien named Alien X, who arrives from another dimension.

Alien X, a mischievous and enigmatic being, brings with him a series of strange and often humorous events. The girls, intrigued by his presence, decide to help him navigate their world while also learning more about his origins and abilities. Throughout the series, the girls and Alien X engage in various adventures, often involving magical mishaps, comedic misunderstandings, and lighthearted challenges. These escapades are interspersed with moments of camaraderie and growth as the girls strengthen their friendship and deepen their understanding of magic.

The plot is episodic, with each episode focusing on a new situation or problem that arises from Alien X's presence or the girls' attempts to harness magical powers. Despite the fantastical elements, the series maintains a grounded tone, emphasizing the everyday lives of the girls and their interactions with each other and their surroundings. The dynamic between the characters is central to the narrative, with their distinct personalities contributing to the humor and charm of the series.

As the story progresses, the girls face increasingly complex situations, often requiring them to work together and rely on their ingenuity. Alien X, while initially a source of chaos, becomes an integral part of their group, adding an extra layer of unpredictability to their adventures. The series concludes with a sense of closure, as the girls reflect on their experiences and the bonds they have formed, leaving room for the possibility of future magical endeavors.