
Quick answer — Reia worked on The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat (Original Character Design), Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru 2nd Season (Original Character Design).
Reia worked on The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat (Original Character Design), Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei suru 2nd Season (Original Character Design).