Skyward is the first game in the Zelda timeline. Link and Zelda grow up as best friends on the floating island called Skyloft. The land of Skyloft once was part of Hyrule but the Goddess Hylia pulled it away from the rest of the land because of Demise, aka pure evil (Ganondorf before being reincarnated as a humanoid). Ghirahim the demon sword (Demise’s henchmen) kidnapped Zelda and brought her to Hyrule. Link followed Ghirahim to Hyrule and saved Zelda. Link killed Ghirahim and Demise.