Six months after her divorce, Chisato Shoda had gradually grown accustomed to living alone with her son. Her ex-husband had been deeply involved in womanizing and led a wildly irresponsible life, leaving her utterly exhausted from the emotional turmoil. Now free from such burdens, she was finally beginning a new chapter. However, for her son Yasuhiro, growing up without a father became a profound shock. Entering adolescence, he began to lose emotional stability due to the lack of parental presence, eventually becoming a recluse. Watching her son's condition, Chisato realized that as he grew older, she had less and less time to comfort and nurture him. Reflecting on their daily life together, she begins searching for a new way to rebuild their family bond.