Some wonder why Japan and Korea relations are in deep shit. Some may think that Korea is still stuck up in the past and requesting Japan's apology and repentance, and in order for peace and development of two countries, Korea should let it go. Although, this may seem true, but without Japan's sincere apology for the crimes they have committed during war, there can be no future for the two countries. The reason Korea is urging Japan's apology is to prevent Japan from making the same mistake. Moreover, if it comes to the comfort women issue, Japan must apologize. Only Japan's apology and a correct historical awareness can bring peace and cooperation in East Asia.