Juna Ariyoshi is an ordinary Japanese schoolgirl, who possesses a childlike curiosity and a strong admiration toward nature. One day, while on a trip with her boyfriend, Tokio Oshima, Juna dies from a motorcycle accident. However, she is given a chance to live by an individual named Chris Hawken. He offers her powers that make her the avatar of time; in exchange, she must fight to protect the Earth from evil forces c...