I married my colleague, Professor Kaneda, retired, and entered the family. However, while her husband was on duty, she fell down the stairs in the school and hit her head and was hospitalized. I was forced to return to work part-time on behalf of her husband who was unable to work. After a student transferred to the school, the school became rough and isolated by collecting problem children in a special classroom. …… I was entrusted with the class and was replied to by the most problematic child in the school.