Mangas

Hinomiya is a quiet student who never says anything, but has a supernatural power. He saved Shijiro Sayu a number of years ago when she was falling, and since then she has considered him a friend. One day, an unnatural murder occurs, and a little girl escaping the killers runs into Hinomiya and Shijiro, with the supernatural villains not far behind! 
Bokke-san
Hinomiya is a quiet student who never says anything, but has a supernatural power. He saved Shijiro Sayu a number of years ago when she was falling, and since then she has considered him a friend. One day, an unnatural murder occurs, and a little girl escaping the killers runs into Hinomiya and Shijiro, with the supernatural villains not far behind! -Nins Leprechaun
ムヒョとロージーの魔法律相談事務所 -  魔法律事務所 -  무효와 로지의 마법률 상담 사무소 -  Muhyo & Roji -  Muhyo & Roji's Bureau of Supernatural Investigation -  Muhyo & Roojii -  Muhyo an
From Viz: Are you a victim of unwanted spirit possession? Is there a ghost you need sent up and away...or down to burn for all eternity? If the answer is yes, then you need Muhyo and Roji, experts in magic law. Serving justice to evil spirits is their specialty.
ムヒョとロージーの魔法律相談事務所, 무효와 로지의 마법률 상담 사무소, Muhyo & Roji's Bureau of Supernatural Investigation, Muhyo & Roojii, Muhyo and Roojii’s Magical Law Consultatio
Are you a victim of unwanted spirit possession? Is there a ghost you need sent up and away...or down to burn for all eternity? If the answer is yes, then you need Muhyo and Roji, experts in magic law. Serving justice to evil spirits is their specialty.