Eiko Koike (小池栄子, Koike Eiko?, born November 20, 1980 in Tokyo) is a Japanese idol. Outside of Japan, her best-known work is the film 2LDK. She has worked as a ringside commentator and spokesperson for Japan's PRIDE Fighting Championships from 2000 to 2006.
Recently, she has been making appearances for the comedic HUSTLE wrestling promotion supporting her husband, Wataru Sakata, and the New Generation HUSTLE Army as Yosei (妖精, Yosei?) which means "Fairy" in Japanese. She helped her husband gain an upset victory against the seemingly unstoppable wrestling cyborg, The Esperanza when she deflected one of his "spirit gun" bolts back at him.
