Harmony Grace is a fictional character from the anime series Busou Shinki. As a Shinki, she is an advanced, customizable action figure with artificial intelligence, designed to assist and engage with her owner in various battles and daily life. Harmony Grace is characterized by her calm demeanor, strategic mind, and a strong sense of loyalty toward her master. In the series, she often takes on a supportive role, providing guidance and tactical advice during battles while also serving as a reliable companion.