The last night she spends with her precious only son. Many memories come back to her mind. Despite the hardships of being a single parent, the two have supported each other. Today is the last day of that, as tomorrow her son will leave to start working. Kana tries to send him off with a smile so as not to worry him, but... her son is feeling lonely just as much. The two cling to each other as if devouring each other. They don't want to be separated. Their feelings get out of control, and her son doesn't stop torturing her even when she reaches her climax. Kana is...