Games like Kannagi no Mori: Youko Kitan

If you finished Kannagi no Mori: Youko Kitan, the closest matches are Amnesia, Diabolik Lovers: Vandead Carnival, Your Memories Off: Girl's Style, Angelique Etoile and Diabolik Lovers: Haunted Dark Bridal. All 8 share its visual novel genre and are ranked by how closely their themes and modes overlap.