Tsunami Jousuke is a tall character with dark skin and distinctive pink hair that spikes slightly upward. He is often seen wearing white goggles on his head, though he primarily uses them while surfing.

His casual attire, as depicted in the fifth ending theme of Inazuma Eleven, consists of a dark yellow shirt paired with vermilion shorts. He also wears a black knotted bracelet and green sandals, reflecting his relaxed and beach-inspired style.

In the Inazuma Eleven GO series, Tsunami retains a hairstyle similar to his younger appearance but has grown significantly taller. Additionally, he is shown wearing glasses and a blue shirt, indicating a more mature look.

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Tsunami Jousuke is an energetic and optimistic individual who provides unwavering support to his teammates. A self-proclaimed “man of the ocean,” he has a deep love for the sea, often drawing comparisons between life, soccer, and the vastness of the ocean.

Within the team, Tsunami is regarded as a cool and laid-back figure. As the oldest member, he naturally takes on the role of a big brother to his teammates, maintaining a relaxed demeanor even when his juniors act unusually around him. His carefree attitude extends to his perspective on soccer, which he views as less complex than surfing.

His deep connection to the ocean is reflected in both his speech and playing style, as he frequently references the sea when offering advice or making observations. This affinity for the ocean is also evident in his techniques, as many of his special moves are named after aquatic elements. Despite his easygoing nature, he possesses an exceptional athletic sense, as noted by Megane, and was able to develop his own Hissatsu shot on his very first day playing soccer.

Tsunami is 15 years old in Inazuma Eleven and 25 years old in Inazuma Eleven GO.

Tsunami was originally the captain of Oumihara, a coastal school known for its strong athletic culture. His natural strength and defensive skills made him a standout player, but he initially played soccer for fun rather than competition.

After being scouted by Raimon, he decided to take the sport more seriously, quickly becoming one of the team’s strongest defenders. His impressive skills later earned him a spot in Inazuma Japan, where he competed in the Football Frontier International tournament, proving himself as a world-class defender.

Years later, in Inazuma Eleven GO VS Danball Senki W, Tsunami returns as a veteran player for Inazuma Legend Japan, representing the best of his generation.

Endou Mamoru
Tsunami has immense respect for Endou, admiring his leadership and unwavering determination. He considers Endou a true friend and captain.

Gouenji Shuuya
Tsunami and Gouenji develop strong teamwork, often coordinating defensive and offensive plays.

Kidou Yuuto
Initially distant, Tsunami earns Kidou’s respect through his reliable defensive skills and adaptability.

Kazemaru Ichirouta
The two share a mutual respect, as both focus on speed and movement-based techniques.

Matsukaze Tenma (Inazuma GO era)
As a veteran player, Tsunami guides and inspires the next generation, helping Tenma grow as a player.

Tsunami Jousuke’s journey from a casual surfer to an international defender makes him one of the most beloved supporting characters in Inazuma Eleven. His charismatic personality, powerful defensive skills, and unique playstyle make him a fan-favorite player who brings both fun and strength to the team.

Whether as a carefree surfer, a dependable defender, or a veteran legend, Tsunami remains one of the most memorable and unique characters in the series, proving that soccer, like surfing, is all about catching the right wave.