Keiichi was born on December 11, 1977 in Tokyo, Japan, to Masahiro Enomoto, a businessman, and Hideko Enomoto, grand daughter of Ikebana master. Keiichi's early film influence were Castle in the Sky (1986), The Goonies (1985), Indiana Jones and the Temple of Doom (1984) and Star Wars: Episode VI - Return of the Jedi (1983).