Who is your best friend?Why?

I had a best freind. When I was young her name is "Niko". I called her ko.She
was funny person and She has many friends. She lives with her mather. The mather's house of ko near my house.When I went at the school. ko will sit the opposite the door when I opened. It was everyweekdays. We were friendly. She helps me. When we walking at the school. We had crossover the road. It was two way and it had many cars. I'was afraid it. She knew about me. Then she caught my hand and crossover the road. and she laughed at me. It was the same everyday. When we were in class ko learns and responed about the English languge and History.When I didn't understand she taught me at home! When we had free weekends,
We visited Ayuttaya with many friends. It was a beautiful place. She told about there place. We were interested by it. However after we finish education. I still talked with her always. And one day! She told with me. I will move at Ayuttaya with mather. Nowadays I still talk with her on the phone. And She got the job there, I thouht in my mind, My friend is a lucky person really.