Taito has been really sleepy lately and keeps dreaming of a female vampire who says she has given him her "poison." Sometimes he even thinks he hears her voice when he's awake. But after surviving an accident that should have killed him, Taito's world changes drastically and he realizes that his dreams are more real than he thought.
Now I'm going to be straightforward and say this anime is the worst I have ever seen in my 10 years as a western Otaku. It's like someone took the Naruto characters, added them in a Highschool DxD plot. Forced a romance between the two main characters, which by the way express their love for each other by saying EACH OTHER'S FREAKING NAME LIKE THEY GET BLOOD MONEY FOR IT and threw the whole show in a flaming pile of horse shit. Still with me? Good, cause believe it or not, the show gets worse. Had it been what I stated earlier; the show would have scored higher than School Days, but unfortunately. It doesn't. The plot of Tenma goes absolutely no where and is literally just a gate way for the two main characters, to fuck each other. So if you think shows such as School Days and Boko no Pico are bad? Itsuka Tenma no Kuro Usagi is infinite times worst.
Itsuka Tenma no Kuro Usagi gets a well deserved 0.73/10. for its shitty plot, shitty characters, shitty voice acting, shitty opening and shitty ending. Oh and my next review will either be Steins;Gate or Accel World for I am refusing to review Soul Eater till I rewatch it!