Endless Love was the unofficial title for a set of four Korean drama series produced by KBS stations. It featured four parts, with each named after the seasons of the year. Each part of the series had its own plotlines, characters, and actors. The series was widely viewed in Asia and continued the Korean wave that had gripped the region since the late 1990s and early 2000s. Later on, as the series progressed and was marketed outside of Korea, the moniker 'Endless Love' stuck and was used to identify all the series as one.The series was widely known in South Korea as producer-director Yun Suk Ho's pet project, dealing with four different seasons of love. In Korea, however, it is not totally put together as a series but is arranged as four separate shows. Winter Sonata (a.k.a. Winter Ballad/Winter Love Story) was the second part of the KBS TV drama series Endless Love. This installment was produced in March 2002 in South Korea. It was broadcast on Japan's NHK and has been a major part of the Korean wave both there and throughout Asia. It is known as ????? (Fuyu no sonata) in Japanese, ???? (D?ngrì Liàn'g?) or ???? (D?ngjì Liàn'g?) in Mandarin.