Regrettably, by the time the film was released, all the survivors had passed away. The most regrettable thing is that this film has its own significance. To document, to not forget-that is its greatest meaning. Do you know what it means in this day and age for everyone to sit in silence until the lights come on? It means hundreds of people who can never return home. It means 'Tell her I've given my all trying to return to them.' It's the gentleness of the Chinese people, the heart-wrenching longing of later generations, the last survivors who never saw the finished film, and the hypocrisy of the Japanese. It's too painful. If it were my father or grandfather... 'The song of humanity is the song of courage.' That song is too painful, and in that moment, the resonance of humanity shines brightly.