Hikaru Hayashi was a Japanese manga artist and illustrator well known for his work on instructional books related to how to draw manga. Throughout his career, he contributed to several series, but perhaps his most significant impact was on budding artists whom he guided through step-by-step manuals. These manuals often covered various aspects of manga creation, including character design, expressions, anatomy, and perspective. Hayashi's accessible teaching style and detailed illustrations helped demystify the manga art process for a wide audience, making creating manga more approachable for beginners and enthusiasts alike.