"The Funny Judo Champion" centers on Haruto Tanaka, a high school student with an unconventional approach to judo. Unlike traditional judo practitioners, Haruto relies on humor and unorthodox techniques to outwit his opponents, often catching them off guard with his unpredictable style. Despite his lack of formal training, Haruto’s natural talent and quick thinking earn him a reputation as a rising star in the judo world.

The narrative begins with Haruto joining his school’s judo club, which is on the verge of disbanding due to a lack of members and poor performance in competitions. Haruto’s arrival injects new energy into the team, as his unique methods inspire his teammates to think creatively and challenge conventional norms. The series explores Haruto’s journey as he competes in regional and national tournaments, facing off against skilled opponents who initially underestimate him. Each match serves as a platform to showcase Haruto’s ingenuity, blending comedy with intense action as he devises clever strategies to overcome stronger adversaries.

Key characters include Aiko Nakamura, the team captain and a disciplined judoka who initially clashes with Haruto’s carefree attitude but gradually comes to respect his unconventional approach. Kenta Mori, Haruto’s best friend and fellow club member, provides comic relief and moral support, often serving as a sounding board for Haruto’s ideas. The series also introduces rival judokas, such as Ryota Fujimoto, a prodigy with a strict adherence to traditional techniques, who becomes Haruto’s primary rival and eventual ally.

Themes of perseverance, teamwork, and the importance of individuality are woven throughout the story. Haruto’s journey is not just about winning matches but also about challenging the status quo and proving that there is no single "right" way to succeed. The series balances lighthearted moments with intense judo matches, creating a dynamic narrative that appeals to both sports enthusiasts and casual viewers. Through its engaging characters and well-paced plot, "The Funny Judo Champion" delivers a compelling story that celebrates creativity and determination in the world of competitive judo.