A robot girl pulled up from the ocean floor by Natsuki. She looks and acts so human that most people wouldn't realize she's artificial—she genuinely expresses emotion and feels things, which sets her apart from typical machines.
Apparently she used to work as an assistant to Natsuki's grandmother, though she doesn't remember much from before her long time sleeping underwater. She asks Natsuki to help her recover those lost memories so she can finally carry out her old master's last wish.
She's incredibly curious and loves learning new things. She takes real pride in being "high-performance," which drives a lot of what she does.
Content compiled by AnimeList.moe from publicly available sources.
