Plot concept: The slapstick romantic comedy centers around an ordinary 16-year-old high school boy named Yūto Amakawa who is protected by a spirit—specifically, a beautiful, sword-wielding cat girl spirit named Himari.
After originally being simulcast on Crunchyroll and then expiring, Omamori Himari eventually was licensed by Funimation for release which was sadly DVD only.
The series comes from the manga of the same name by Milan Mitra that Yen Press has released in North America.
The anime was directed by Shinji Ushiro based on the series composition by Katsumi Hasegawa.