Naisho no Wakana-san

The story centers on a young woman named Wakana Muto. She lives with her husband, who is 15 years older than her, and their three-year-old son. Due to her busy husband, who is always at work, they are rarely at home together. One day, while standing in traffic, Wakana decides to spend time with her husband to show him how much she appreciates his attention and care.