Shinmai Maou No Testament Burst Ova -

If you thought the television version of Burst was spicy, the turns the heat up to a supernova. This is widely considered the most explicit entry in the entire franchise until the release of the Departures movie.

Community discussions often highlight that while this OVA provides more screen time for specific characters like the school nurse, Chisato Hasegawa Shinmai Maou no Testament Burst OVA