Kawaki wo ameku by Minami is an absolute banger and if I recall it was used as an opening for some shitty ecchi show a few years back. Good idea for a discussion topic though I would probably have more to add if I was at my computer and could look over my MAL.

EDIT: anything associated with the High School of the Dead anime. Maon Kurosaki (may she rest in peace) did a fabulous job on the endings for that one.

Kawaki wo ameku by Minami is an absolute banger and if I recall it was used as an opening for some shitty ecchi show a few years back. Good idea for a discussion topic though I would probably have more to add if I was at my computer and could look over my MAL.