|Voiced by||Nana Yanagisawa|
Ikuko Kifune (木船郁子 Kifune Ikuko?) is a character in Forbidden Siren 2. A marine biologist with strange psychic powers, Ikuko can control the people she sightjacks through some kind of possession, and is the twin sister of Ryuko Tagawa. She comes to Yamijima unwillingly, drawn by instinct.