The official website for the Reborn to Master the Blade: From Hero-King to Extraordinary Squire anime has announced that the series is scheduled to premiere in Japan on January 9, 2023. Crunchyroll had previously announced that it would simulcast the anime in January 2023 in North America, Central America, South America, Europe, Africa, Oceania, the Middle East, and CIS.
Reborn to Master the Blade: From Hero-King to Extraordinary Squire is described as:
After living a life devoted to serving his country and people, Inglis’ one wish to be free of a king’s burden and to train was actually heard, but as a beautiful girl. Reborn in the far future as a daughter to renowned knights, Inglis can now focus on mastering the martial arts. A wish has been granted, and Inglis will be on the front lines fulfilling the dream of becoming the strongest knight.