Natsu e no Tobira

About “Natsu e no Tobira”

Natsu e no Tobira is a Japanese manga series created by Keiko Takemiya. It is considered one of the first shōnen-ai works. The story was first published in Hana to Yume in 1975 by Hakusensha and later re-released in 2000 by Kodansha. An animated film adaptation was released in Japan on March 20, 1981. The film is based on the manga and marks an early example of animation derived from shōnen-ai content. (Summary adapted from Wikipedia, CC BY-SA 4.0.)