one day ogura met high school students from hawaii. she told them about what she calls invisible scars from the time of the bombing. she described what happened after she gave water to people who were suffering in the aftermath. >> to my surprise, a couple people vomited after drinking water and died, stopped to move. i was shocked. >> reporter: ogura blamed herself for the deaths. >> so i kept secret for so many years. like 20 years or 30 years. i saw many people become victims, especially children, you know. >> reporter: ogura wrapped up her talk by asking the students to act. >> please tell, convey our survivo survivo survivors' feeling and the prayer to your friends, to your family. >> i would like to share her story and share the feelings that she expressed today to many people in hawaii. >> nuclear weapons, that shouldn't be something that should be used in humankind. >> i never really realized what they actually do to people and what they do -- what they can do to a city as a whole. >> i am only the person pushing their back and