Mei, who gave birth to a child at a young age, got divorced due to her husband's domestic violence. As a single mother, she was working and raising her child on her own. She met a mommy friend whose child attended the same nursery school, and her husband, "Ichi." One day, when she asked Ichi for help moving some furniture, her mommy friend was visiting her parents' home. She tried to refuse, saying, "I feel bad for his wife...", but Ichi kindly agreed to help her.