Three months after his wife began working at a cafe, a rift started to form between the couple. Though she desired an ideal husband and children, she grew increasingly anxious over her husband's indifferent attitude. When she finally expressed her wish to prioritize having a child, her words were accidentally overheard by cafe manager Oki at her regular hangout. Seemingly out of kindness, Oki invited her to work at his own coffee shop. At that moment, her husband still had no idea about the danger of leaving his wife alone.