Quick answer — Kenji Horikawa worked on Hanasaku Iroha ~Blossoms for Tomorrow~ (Producer), Tari Tari (Producer), Angel Beats! Specials (Producer) and 3 more anime.
Kenji Horikawa worked on Hanasaku Iroha ~Blossoms for Tomorrow~ (Producer), Tari Tari (Producer), Angel Beats! Specials (Producer), Another (Planning), One Piece: Defeat the Pirate Ganzack! (Production Desk), Fairy gone Season 2 (Production).
