"Anime de Training! Xx!" is a short-form anime series that blends comedy, sports, and slice-of-life elements. The story centers on a group of high school students who join their school's newly established training club, which focuses on physical fitness and self-improvement. The club is led by an enthusiastic and slightly eccentric coach who devises unconventional and often humorous training methods to push the students beyond their limits. Each episode highlights the students' struggles, growth, and camaraderie as they tackle various physical challenges, ranging from endurance exercises to competitive sports.

The main characters include a diverse group of students, each with distinct personalities and motivations. The protagonist, a reserved and initially unmotivated student, gradually becomes more engaged in the club's activities, finding a sense of purpose and confidence through training. Other members include a competitive athlete seeking to refine their skills, a bookish student looking to improve their physical health, and a carefree individual who joins for fun but discovers unexpected benefits. The interactions between the characters drive much of the humor and emotional moments, as they support and challenge one another.

The plot unfolds episodically, with each installment focusing on a specific training session or event. These episodes often incorporate exaggerated physical comedy and over-the-top scenarios, such as obstacle courses or improvised competitions, to emphasize the absurdity and intensity of the club's activities. Despite the comedic tone, the series occasionally touches on themes of perseverance, teamwork, and personal growth, as the characters learn to overcome their insecurities and work together to achieve their goals. The narrative maintains a lighthearted and accessible tone, making it suitable for a broad audience while offering a unique take on the sports and school club genres.