Touhou Niji Sousaku Doujin Anime: Musou Kakyou 2021 saison 01 episode 01

Welcome to the fascinating world of Gensokyo, in which youkai, animals and some humans live, completely separated from our world by a magical barrier. The only gateway between the two worlds is the Hakurei shrine. Reimu Hakurei is the maiden working at said shrine. Whenever problems of supernatural causes occur, Reimu goes out with her friends to investigate, eliminate the cause and hopefully restore Gensokyo to its equilibrium.