A lesbian couple in conservative Japan must strive to stay together when one of them is diagnosed with advanced cancer.故事发生在一座名为堕天城的城市之中,它夹在天堂和地狱之间,是一座充满了危险和奇遇的城市。近日来,城市里出现了邪恶的恶灵,他们依靠袭击市民们为生,这令市民们人心惶惶人人自危。