A lady, because her mother needs emergency surgery, temporarily entrusts her young child to a business man, and presents an appraisal report showing that the child has a blood relationship with him. The well-behaved and sensible child keeps life precautions in mind, quietly and without adding trouble. Although harboring doubts, the man agrees to take care of him for a week, attentively tending to the child's daily life while arranging personnel to verify information, re-conduct appraisals, and calmly explore the truth of the whole matter.