In a quiet, traditional Japanese home, a mature woman, her skin soft and warm like the setting sun, finds herself alone with her stepson. As she tends to the garden, her mind wanders, recalling the innocent times they shared. But now, her thoughts are anything but pure. She imagines him, his youthful vigor, his strong body honed from years of martial arts. She feels a stirring, a warmth between her legs. She knows it's wrong, but she can't help it. She wants him.