晴空万里的日本东京，飞机云高高悬挂苍穹之顶。海鸥的叫声回荡在海面上，静谧的海水反射着天空的颜色。一座大桥下，憨态可掬的巴吉度猎犬从睡眠中醒来。它慢悠悠地踱到街上，废弃在十字街头中央的装甲车，早就成为乌鸦们栖息的枝头。一曾喧嚣的东京浅草，丝毫看不到半点人影，仿佛这条猎犬是这空城内唯一的主人。它周游大街小巷，寻找着梦中和它玩投球游戏的人类，如此平凡的心愿，而今竟成奢望。这一日，一台人形机器人莅临空城，缓缓漂浮在雷门之前。她的到来，似乎让小狗前所未有地兴奋起来……

Set in Tokyo in the near future, when all humanity has been wiped out, a lonely basset hound wanders around a deserted city. Its only wish is to feel the warmth of a human being once more.