At 18, Mako became pregnant by her boyfriend, who suddenly vanished without a trace. Resolving to raise the child alone, she gave birth to Kota. Kota developed a strong passion for art, and after graduating from ● High School, became an apprentice to a potter, living and training under him. One day, on the occasion of Kota turning 20, his master urged him to do something special for his mother as a gesture of gratitude. Kota took time off and invited Mako on a hot spring trip back to their hometown. As warmth and emotion bring them closer, the bond between them deepens.