Strike the Blood (Seasons 1–5)

Strike the Blood (ストライク・ザ・ブラッド, 2013) is a Japanese action-fantasy anime you can watch online on iFILM. Itogami Island is a legal coexistence zone where demons live as full citizens — and Kojou Akatsuki used to be just another high school student there. Then he became a vampire. Not a minor one: the Fourth Primogenitor, a rank most consider mythology.

The Lion King Organization sends sword-shaman Yukina Himeragi to tail him, with standing orders to kill if he slips. Instead, the two end up fighting together against whatever threat rolls onto the island next. The series runs 24 episodes plus several OVA entries, building action arcs over a slow-burn partnership. Stream Strike the Blood online on iFILM.