Roy gets sent back in time in order to "Achieve his heart's desire", to quote the Gate. This is a Peggy Sue fic, predominatly set in the anime-verse, but has bits of manga canon added for flavor. Its fantasticly written, and explores exactly how much sending one man back in time would change things. Its on a temporary hiatus, but the author is still very much active, so keep your fingers crossed for an update.
FanficRecs Comment by Aryashi
Roy gets sent back in time in order to "Achieve his heart's desire", to quote the Gate. This is a Peggy Sue fic, predominatly set in the anime-verse, but has bits of manga canon added for flavor. Its fantasticly written, and explores exactly how much sending one man back in time would change things. Its on a temporary hiatus, but the author is still very much active, so keep your fingers crossed for an update.