Games like Hakuoki Reimeiroku Omohase Sora

If you finished Hakuoki Reimeiroku Omohase Sora, the closest matches are Bakumatsu Ishin: Amakakeru Koi, Diabolik Lovers: Vandead Carnival, Diabolik Lovers More, Blood, Your Memories Off: Girl's Style and Diabolik Lovers: Haunted Dark Bridal. All 8 share its visual novel genre and are ranked by how closely their themes and modes overlap.