Shikamaru fans, tell me about Shikamaru's life story?

Born in the Nara clan. Friends with Ino and Choji even before they started the academy. He was one of the lowest in his class because he is lazy but he is very intelligent. He liked to watch clouds as a kid. However when duty calls he knows its time to do his part. He likes to pay games like Shogi and Go. He is a Chunin.

Nothing really. In his childhood, that is. He's a smart, lazy person with an IQ score higher than the average person. Loves his father, who dies, Asuma-sensei, who also dies, and his closest friends are Ino and Chouji. Throughout those deaths, he still stays strong and help with the war.