On Sado Island, Kii works as a cleaner at a gold mine. One day, she finds a collapsed woman in the facility and takes the woman to her home. The woman doesn't remember her past or even her name. The woman is named Midori by the two other girls living with Kii. Kii gets permission from the director for Midori to work as a cleaner at the mine. One day, Midori is attracted by the presence of cats and...

‘My dad saw a monster here. When he was a kid.’ · ‘A monster?’ · ‘Yeah, a monster. It moves between this world and the next.’ Ao lives with his mother and little sister Kii on Sado Island in Japan. He misses his father, who recently disappeared without a trace – although not much is spoken about it. While their mother tries to deal with the loss in her own way, Ao and Kii run across the island an...