Tetsuya Saruwatari is a Japanese manga artist known for his work in the seinen genre, which is targeted towards young adult men. He was born on June 25, 1958, in Fukuoka, Japan. Saruwatari made his debut in the manga industry in the early 1980s and gained popularity for his distinctive art style, characterized by muscular characters and intense action scenes. One of Saruwatari's most famous works is "Tough" (known as "Koko Tekken-den Tough" in Japan), a martial arts manga that began serialization in 1993. Prior to that, he also found success with "Riki-Oh," a manga that combined martial arts with a post-apocalyptic setting. Saruwatari's stories often revolve around themes of combat, strength, and determination, and he is known for his detailed research on martial arts and combat sports, which adds authenticity to his work. His creations have garnered a fan base not only in Japan but also among manga enthusiasts around the world.