Winter Days is a 2003 animated film, directed by Kihachirō Kawamoto. It is based on one of the renku (collaborative linked poems) in the 1684 collection of the same name by the 17th-century Japanese poet Bashō. The creation of the film followed the traditional collaborative nature of the source material – the visuals for each of the 36 stanzas were independently created by 35 different animators. As well as many Japanese animators, Kawamoto assembled leading names of animation from across the world. Each animator was asked to contribute at least 30 seconds to illustrate their stanza, and most of the sequences are under a minute (Yuriy Norshteyn's, though, is nearly two minutes long).

When a young soldier is killed while trying to prevent his younger sister, Kaoru, from being sold into a life of prostitution, his commander, Col. Miyagi, tries to honor his dying wish to rescue his sister. Upon finding Kaoru at a party working as a geisha and later rescuing her from committing suicide, Col. Miyagi allows her to move in with him. Over time, the two grow close, but in spite of Kaoru's growing feelings for him, Col. Miyagi is unable to bring himself to return her love. On the night of his deployment to war, Col. Miyagi finally admits his feelings for Kaoru, but will they ever be able to enjoy a peaceful life together now that a very violent and bloody military revolt is under way...