Has anyone ever heard of the anime Denpa-teki na Kanojo? its a 2 episode OVA series and it's very obscure, it's about this guy who meets a girl that says she's met him in a previous life and she wants to be his "knight" and later one his classmates is killed and she helps him look for the killer. (Sorry for my crappy explanation)

Heard of it, but didn't watch it. Is it worth it?

totally worth the watch! Although i wish it was a full series!