Tu was a soldier who fought alongside Kien in the Vietnam War. He died on the very last day of the war. That very morning, he sensed that he wouldn’t survive, so he gave Kien a deck of cards that they often used to use with their other friends, all of whom had also died in battle in the previous few days. Just as he predicted, Tu died that day while attacking the Saigon airport. The war ended mere hours after his death.