Quick answer — Homare Sakazuki worked on The Hill Dyed Rose Madder (Original Character Design), School Days (TV) (Original Character Design), The Hill Dyed Rose Madder OVA (Original Character Design) and 3 more anime.
Homare Sakazuki worked on The Hill Dyed Rose Madder (Original Character Design), School Days (TV) (Original Character Design), The Hill Dyed Rose Madder OVA (Original Character Design), School Days: Valentine Days (Original Character Design), School Days (Original Character Design), School Days: Magical Heart☆Kokoro-chan (Original Character Design).
