An elderly woman, Sensei is a doctor for both humans and androids. She was involved in the development of the A7 series of robots and hosted Director Alpha at her home, possibly as Director Alpha's owner. When she was younger, she rode motorcycles, raced hovercraft, and was Ojisan's senpai from school. Her surname is Koumi'ishi (子海石, Koumi'ishi , lit. &quot;child-sea-stone&quot;) but she is always addressed by just her title. Besides the pendant with her logo, both Alphas appear inherit her vision of &quot;going and seeing&quot;.

Set hundreds of years in the future after an environmental catastrophe, Yokohama Kaidashi Kikou (also known as Yokohama Shopping Log) centers on the simple life of Alpha, an android who runs a small coffee shop in coastal Japan. Alpha stands witness to chronicle the end of humanity’s days with coffee, a slice of watermelon, and the sound of her moon guitar backed by distant seagulls. Quiet and bittersweet, this tale is about the melancholy beauty that can be found even as the end approaches.
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(Source: Seven Seas Entertainment)

This is not so much a story as it is a slice of life. Or rather, it is a look into portions of the life of a girl named Alpha, together with the people around her. Alpha runs a little cafe on the outskirts of Yokohama. There are almost no customers, but Alpha does not mind at all since she has the occasional company of the old man who runs the gasoline stand down the road, as well as that of his grandson Takahiro. This is a Yokohama of the future, when the sea covers most of the land and roads have disappeared under sand or water. Alpha is in fact a robot, looking after the cafe during her owner's indefinite leave of absence.<br><br>
(Source: AniDB)