The story presents our Mc who is a partial-demon partial-human who is approached by a bodyless (only head) Immortal to kill her as she cannot be killed by a human, offering him a cure to his depleting lifespan. Seeing no valid advantage to agree to her offer he instead decides to stick with her for the advantages rather than killing her. After knowing that the one who took the Immortal's lower half was the one who made him a half demon due to experiments he decided to offer his help to find the person. Along the journey of finding, they solve some mysterious cases alongthe way.

1) Art (7.5): The art is a looker. It is absolutely intricate and detailed. Definitely worthy of 8.5-9 score. But I think it is a reason for its downfall too. The art is so much detailed that sometimes I was not even able to understand what was happening. And this was specially the case in the scenes which involved fighting. There was just a little too much art all over the screen which made it look like art was cramped into it.

2) Story (6.5): Well the story has not progressed that much but till where I have read it is a crime solving/detective manga. Their method of solving the cases is the detective style (solving the whole case and then telling the reader about how they solved it) which is always interesting to see.

3) Characters (7.5) : Well characters are good as you definitely not see a talking head without a torso locked in bird cage solving cases. and it also contains fictional characters from famous novels some of them being "The Adventures of Sherlock Holmes", "The Phantom of The Opera", "Arsène Lupin, Gentleman Burglar". Seeing all of these characters in one frame sure is exciting to see.

4) Enjoyment (7): Well it was not necessarily hooking but was not boring as well. Was not able to binge-read this. It is a decent enough detective manga though which you can pick up for a casual read.