
Quick answer — Gekka Uruu worked on Shomin Sample (Original Character Design), OniAi (Original Character Design), Shomin Sample: Kujou-san no Doesu Soudan-Shitsu Anime-ban (Original Character Design) and 1 more anime.
Gekka Uruu worked on Shomin Sample (Original Character Design), OniAi (Original Character Design), Shomin Sample: Kujou-san no Doesu Soudan-Shitsu Anime-ban (Original Character Design), OniAi Specials (Original Character Design).