The key of sharps does the key of G# minor contain?

The key of G minor contains five sharps because the key signature for G minor consists of two sharps (F# and C#) and it is a relative minor of Bb major, which itself has five flats. In music theory, a relative minor shares the same key signature as its relative major, but starts on a different note. Since Bb major has five flats (Bb, Eb, Ab, Db, and Gb), its relative minor, G minor, will have the same number of sharps as flats in the relative major, which is five.