Okko's Inn is a series of Japanese children's novels, written by Hiroko Reijō and illustrated by Asami. Kodansha released twenty volumes between 2003 and 2013 under the imprint of Aoi Tori Bunko. A manga adaptation with art by Eiko Ōuchi was serialized in Kodansha's shōjo manga Nakayoshi and collected in seven tankōbon volumes.

Nakayoshi is a monthly shōjo manga magazine published by Kodansha in Japan. First issued in December 1954, it is a long-running magazine with over 60 years of manga publication history. Notable titles serialized in Nakayoshi include Princess Knight, Candy Candy, Pretty Guardian Sailor Moon and Cardcaptor Sakura. Roughly the size of a phone book, the magazine generally comes with furoku, or small gifts, such as pop-out figures, games, small bags, posters, stickers, and so on. The furoku is an attempt to encourage girls to buy their own copies of the magazine rather than just share with a friend.