人間と文明が滅びかかっている遠い未来の地球で、くるみ、サキ、カリンカ、エクセリアの4人の人間の少女が共同生活をしていた。ある日くるみは道人という少年と恋に落ちる。そしてメールのやり取りなどでくるみ
遇播放卡顿或无法播放时，可切换线路播放
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