The Legend of Heroes: Trails in the Sky

The Legend of Heroes: Trails in the Sky is the sixth game in the Legend of Heroes meta-series, and the first of the Trails franchise.
Originally released in Japan as Eiyuu Densetsu Shikusu, Sora no Kiseki FC for PC, the game’s story follows Estelle and Joshua Bright ten years after the Hundred Days War on their journey to become Bracers.
It is the first installment of a game trilogy, where it would spawn immediate sequels in Trails in the Sky SC and Trails in the Sky the 3rd, along with numerous supplementary media and a remake.

Source: TheGamesDB