Ikimonogakari is a Japanese pop rock duo from Kanagawa Prefecture, Japan consisting of Yoshiki Mizuno and Kiyoe Yoshioka. The group started in February 1999 with Hotaka Yamashita and Yoshiki Mizuno, who had known each other since they were six years old, and was joined by vocalist Kiyoe Yoshioka in November of the same year. The group's name is a reference to ikimono-gakari, a group of children who are responsible for looking after plants and animals in Japanese elementary schools.