Earthlings

Unlike the other females, Natsuki is unique. She carries a transformation mirror and a wand. She might be an extraterrestrial or a witch. Dreaming about other planets, Natsuki spends her summers in the untamed mountains of Nagano with her cousin Yuu. The two kids vow to live no matter what as a horrible chain of events threatens to keep them apart forever.

Natsuki is now an adult. She tries to survive by being normal, and she leads a tranquil life with her asexual spouse. However, Natsuki's family is becoming more demanding, her friends are perplexed as to why she isn't pregnant, and evil spirits from her early years are hunting her. Before leaving the suburbs for her childhood's mountains, Natsuki gets ready by seeing Yuu again. Will their promise linger in his memory? Will he aid her in keeping it, too?