Sherlock Holmes x Sayonara Zetsubou Sensei. Is simply brilliant. This whole OVA left me in despair. Why? because the animation was so good, the story was funny, and the whole cast was here again. It made me remember why I love this show. So when it ended, I was in despair, THE ANIME ENDING HAS LEFT ME IN DESPAIR! Also, it's a Sherlock Holmes type Detective theme, so that just means more brilliance.