For me, it was Sadako and the Thousand Paper Cranes. Based on the true story of Sadako Sasaki, it tells the story of a 12-year-old girl who survived the nuclear bombing of Hiroshima as a toddler, but later died of leukemia, or as it was called at the time ‘atom bomb disease’. Drawing from a traditional belief in Japan, she starts to fold 1,000 origami cranes in hopes that her wish for survival will be granted. When she does not succeed, her friends and family finish making the paper cranes after her death.