Natsu e no Tobira
Japanese title: 夏への扉
Alternative titles: The Door Into Summer, Opening to Summer, Natsu he no Tobira, Door to Summer
Type: Movie
Source: Manga
Episodes: 1
Status: Finished Airing
Aired: Mar 20, 1981
Duration: 59 min
Rating: PG-13 - Teens 13 or older
Studios: Madhouse, Toei Animation
Genres: Boys Love, Drama
Demographics: Shoujo

Marion is a young schoolboy who prides himself on his adherence to a philosophy he calls "rationalism". Because of his disdain for emotional display, he ignores anything remotely akin to affection. But when he's entangled in a romantic affair with an older courtesan, his rationalism is revealed to be little more than a cover for his own emotional immaturity. Learning to love, Marion blossoms under his older lover's care but unfortunately, Marion has yet to learn the true price of the affair.

(Source: ANN)