What is the most challenging thing about running your business? I think, l has two both about most challanging. First, the most hard thing in my challange is language. To learn language is very difficult. But, it is very interisting and fun thing. It is not easy in the world. it is difficult and fun. Second, it is teach an envernonmental education. Every people doesn't know about envernonmental problem well. However, i 'm going to try of it. Because, this problem is very important for our world. We always think to hard about new challenge. The new Challange is wonderfulland beautif things in our life.

Thank you for this Sir Ko. Yes, I think new challenges should be welcomed and not feared. They could bring good changes. We should embrace them.