
Quick answer — Ryuu Dabu worked on The Brilliant Healer's New Life in the Shadows (Original Character Design), Isshun de Chiryou Shiteita no ni Yakutatazu to Tsuihou Sareta Tensai Chiyushi, Yami Healer Toshite Tanoshiku Ikiru 2nd Season (Original Character Design).
Ryuu Dabu worked on The Brilliant Healer's New Life in the Shadows (Original Character Design), Isshun de Chiryou Shiteita no ni Yakutatazu to Tsuihou Sareta Tensai Chiyushi, Yami Healer Toshite Tanoshiku Ikiru 2nd Season (Original Character Design).