Kiyoe Yoshioka (吉岡聖恵, Yoshioka Kiyoe, born February 29, 1984) is from Atsugi-shi, Kanagawa Prefecture. Her parents are farmers. She is a graduate of Ebina High School and the Showa Academia Musicae Junior College. She is the lead vocalist of the trio/band Ikimonogakari, and has written lyrics to some of the band's songs. Her older brother was a classmate of both Hotaka and Yoshiki in high school. Her nicknames are Yosshie, Kiyoe-chan and Kiyorasu (by Shouko Nakagawa). She joined the band in high school when she suddenly saw Yamashita and Mizuno singing in front of the train station. She used to belong to a children's theatrical company.