Quick answer — so-bin worked on Overlord IV (Original Character Design), OVERLORD: The Sacred Kingdom (Original Character Design), Overlord (Original Character Design) and 13 more anime.
so-bin worked on Overlord IV (Original Character Design), OVERLORD: The Sacred Kingdom (Original Character Design), Overlord (Original Character Design), Overlord III (Original Character Design), Overlord II (Original Character Design), Overlord: The Dark Hero (Original Character Design), Isekai Quartet 3 (Original Character Design), Overlord: The Undead King (Original Character Design) and 8 more.