Eiichi Ikegami is a Japanese novelist and manga creator born on May 24, 1970, in Okinawa Prefecture, Japan. He began his writing career while enrolled at Waseda University, though he left before completing his degree. In 1994, he made his literary debut by winning the 6th Japan Fantasy Novel Award for his work Bagajimanu Panasu. His 1998 novel Windmill Festival was later selected as a nominee for the Naoki Prize, a notable recognition in Japanese literature.

Ikegami is the original creator of the science fiction work Shangri-La. The story originated as a light novel series written by Ikegami, with illustrations by Kenichi Yoshida. It was serialized in Kadokawa Shoten’s Newtype magazine from April 2004 to May 2005 before being compiled into a single bound volume. The premise is set in a mid-21st century where climate change policies have transformed Tokyo into a jungle city, and it follows a young woman named Kuniko Hojo as she confronts a powerful, oppressive government organization known as Atlas.

While Ikegami is credited as the original author of Shangri-La, its adaptations into other media involved different creative teams. A manga adaptation, based on Ikegami’s story, was illustrated by Tasuku Karasuma and serialized beginning in 2009. An anime television series adaptation produced by the studio Gonzo aired in 2009, with direction by Makoto Bessho and screenplay by Hiroshi Ōnogi. Ikegami’s role in these projects is that of the original story and concept creator.

Ikegami’s broader literary identity is often characterized as a representative of magical realism in Japan. His writing frequently blends elements of Japanese modernity with spiritual worldviews, and he draws heavily from the culture and traditions of his native Okinawa. Beyond Shangri-La, his other notable works include the novels Rekiosu and Tempest, and he continues to be recognized for creating large-scale entertainment narratives that combine speculative fiction with social and environmental themes.