Response Traces is a installation that attempts to connect grandson with his grandfather. The typewriter used by grandfather is endowed with self-typing function. It writes poems about the growth of grandchild composed by grandfather .By reading those poems, Grandson comes back to the slice of life lived with his grandfather, and responses them one by one. There is a electric heater unit heating the key up in to stamp word onto thermal paper for delivering warmth of affection. The outcome of the installation bear witness to the story and love between grandfather and grandson.