Connections

Nana Ôsaki gave the nickname of "Hachi" (which means 'eight') to Nana Komatsu, not because their names mean 'seven', but in reference of the faithful japanese dog Hachikô. She said Komatsu Nana resembles a cute but demanding dog.

Cosgrove relates the story of this dog.

American remake of the Japanese movie

Chinese remake of Japanese feature