Tetsuyo Ishii, 97, is the oldest person in Minogo, a mountain town in western Japan. Her secret to staying alert and active is to remain "rust-free", like her trusty garden hoe. She lives alone, but finds joy in being self-sufficient. She raises chickens and even grows her own vegetables. She also founded a social club for her elderly neighbors. Through her gregarious and positive personality, Tetsuyo makes the most of life and enriches the lives of others.