This is technically a drama CD for Sengoku Hime 3 on PS3, so you're getting voiced story content more than a traditional soundtrack. Three tracks of Sengoku-era narrative performed by the game's cast, blending dialogue with incidental music underneath.
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The background scoring follows that visual novel style, soft orchestral cues that shift with the drama. Not a lot to dig into musically since it's built around the voice performances. Still has that Sengoku Hime production quality though.
If you're deep into the Sengoku Hime series and understand Japanese, this fills in story gaps between the main game's events.