Fuyu no Sonata: Joshou - Hatsuyuki no Negai
English title: Winter Sonata Prologue: The First Snow Wish
Japanese title: 冬のソナタ 序章 ~初雪の願い~
Type: Special
Episodes: 1
Source: Other
Genres: Drama, Romance
Studios: Studio Comet, KeyEast, REALTHING
Producers: Yoon's Color
Duration: 25 min
Rating: PG-13 - Teens 13 or older

Based on the Korean drama television series about the love between two childhood friends and the tragic events that happen.

In terms of the timeline of the Winter Sonata series, it belongs in the time gap midway through episode 21.

(Source: Frostii Subs)