Hiroshima and Manila were both severely damaged during World War II. While Hiroshima is known around the world as a city destroyed by an atomic bomb, the damage done to Manila is less well-known internationally and also in Japan, despite the deaths of one hundred thousand civilians. The atrocities perpetrated on civilians by Japanese soldiers during the Battle of Manila cast a dark shadow over postwar views of Japan in the Philippines. But why has the battle been forgotten in today’s Japan? This article traces the history of the battle and examines Japanese perceptions of it. It also analyzes how the Japanese atrocities escalated and additionally discusses Filipino views on the atomic bombings. The article considers how to deal with memories of “negative history” through a case study.