Quick answer — Hekiru Hikawa worked on Pani Poni Dash! (Original Creator), Concrete Revolutio: THE LAST SONG (Original Character Design), Concrete Revolutio (Original Character Design) and 1 more anime.
Hekiru Hikawa worked on Pani Poni Dash! (Original Creator), Concrete Revolutio: THE LAST SONG (Original Character Design), Concrete Revolutio (Original Character Design), Hanaori-san Still Wants to Fight in the Next Life (Original Creator).
