:D That's beacuse she / 4ikai / D7von / Imagery by Sound is all the same person: Lain Volta. He publishes his music under different project names to keep the genres separated. This is his more ambient side.
Good question, I believe it's because Lain wants to keep his music from different genres separate. So she = chiptune/electro, 4ikai = ambient/glitch, and Imagery by Sound = industrial/electronic rock