When i first saw the show i was excited because of well you know its different and i like the way neuro's charater is reminds me of myself but the show can be a bit easy to solve the murders but the creator didnt intend on making it a mystery show when you get further into the series it gets more intresting with Sai and Hal and so is Neuro and Yako's relationship well i shouldent say that it would be like a love hate relationship with the way neuro acts lol but it dose get more into it in the manga *spoiler*they do have a couple cute scenes between them in the manga ^^* Music i have to say was good esspecially sai's theme o.o! and for characters some arent very well thought out but i love most of them animation was excellent ,would you be surprized its the same animation company as death note? and thats it for the review overall i loved the series but had problems with a few things i recommend this to people looking for somthing different ,perhaps mystery fans? people that like creepy stuff like me 8D!

Neuro is a being from the underworld, who likes to eat "riddles" and "mysteries" and since he had heard that mysteries abound in the world above, he comes surface side in search of the ultimate riddle capable of satisfying his insatiable hunger. He arrives in front of Katsuragi Yako whose father has been murdered, and smells a tasty riddle... He agrees to help her to solve the murder of her father and in turn forces Yako to act as a detective in his stead, always searching for the ultimate riddle.