Quick answer — Hiro Kanzaki worked on Ore no Imouto ga Konna ni Kawaii Wake ga Nai TRUE ROUTE (Character Design), Eromanga Sensei OVA (Character Design), Oreimo (Character Design) and 6 more anime.
Hiro Kanzaki worked on Ore no Imouto ga Konna ni Kawaii Wake ga Nai TRUE ROUTE (Character Design), Eromanga Sensei OVA (Character Design), Oreimo (Character Design), Oreimo 2 (Character Design), Eromanga Sensei (Character Design), Oreimo 2 (ONA) (Original Character Design), Classroom☆Crisis (Original Character Design), Eureka Seven AO (Character Design) and 1 more.
