Release that Witch is a oNA (web) anime, produced by Thundray.

About the production: the story comes from a other, there are 8 episodes of about 22 minutes and its current status is "finished".

Its main genres are action, adventure, fantasy and romance, with themes such as Kingdom Management, Medieval, Witch and Male Protagonist.

On AniList, Release that Witch has an average score of 80%, a very good score, and appears on 18,699 users' lists.

Roland, a modern man reborn as a prince in the dangerous Border Town, rescues the witches Anna and Nana Pine from the Church. Harnessing their extraordinary powers, he fuses magic and technology to craft weapons, armies, and steam engines to defend his people. As the Demon Moon rises and conspiracies close in on his family, Roland must lead a revolution to protect his allies and reshape the world. (Source: Crunchyroll)

Official synopsis from AniList.