The official website account of the upcoming TV anime How a Realist Hero Rebuilt the Kingdom announced today that Reina Ueda (Ruri in Dr. STONE) will be joining the cast as the idol of the Kingdom of Elfrieden, Juna Doma.
How a Realist Hero Rebuilt the Kingdom is scheduled to premiere on Japanese TV in July 2021.
He also runs a YouTube channel about Japan stuff called TheDoctorDazza, tweets at @DoctorDazza, and posts photos of his travels on Instagram.