The prognosis investigation of parents and their children who have experience to join the "MokuMoku-Group" was carried out. We investigated "Current behavioral characteristics of graduates" and "Mental health of parents" , and studied the relationship between the two. In the results, parents which feel children's characteristics has emerged strongly or children are mentally unstable, show a tendency to increase the mental instability of themselves. Therefore, the therapy which aims to "The mitigation of the characteristics of disability" and "the promotion of mental stability" for children with difficulties in interpersonal relationships will lead to the reduction of insomnia and anxiety, and mental stability, of their parents. The long-term and ongoing support for children with difficulties in interpersonal relationships, is a great significance for their families.