Ikegami received the Fauves d'Honneur at the 2023 Angoulême International Comics Festival.

After graduating from junior high school, Ikegami moved to Osaka and drew manga while working as a billboard sign painter,[3] debuting at the age of 17 writing rental comics.

Ikegami accepted and moved to Tokyo where he worked as Mizuki's assistant for two and a half years.

[8] Ikegami teamed up with writer Richard Woo for M no Shirushi -MacArthur Ansatsu Keikaku- (2020) for Big Comic Superior.

[9] A character called Kēichi Kurata (played by Masataka Kubota) in the TV-drama GeGeGe no Nyōbō is modeled after him.