Asakura Yuno is the first person that was awaken after the monster appear for such thousand years. He was the leader of the World rescue organization that had many responsibility on his shoulder. 

He was 40 years old, but due he was safely awaken, he look much younger. He awaken when all his beloved team die for protect him, so that he make sure no one is die when he was on duty.

He so mature that he almost emotionless but didn't mean he didn't feel sad or anything. He just afraid someone died