Mai Taniyama is a normal high school student who enjoys ghost stories like most teenage girls. However, a chance encounter with Naru - the young, handsome and conceited president of Shibuya Psychic Research - pulls her into the world of ghost hunting. Mai now finds herself working for SPR as an assistant along with a catholic exorcist, a Buddhist monk, a self-proclaimed Shinto priestess and a famous medium. Together this group of paranormal investigators must solve various mysteries around the country, but is Mai so normal after all, and just who is Naru anyway!?
Like Ghost Hunt, Shinrei Tantei Yakumo has both elements of ghosts and detective-work. There is also an underlying theme of romance between the two main characters.
The male character, Yakumo, is very similar to Naru. They both are quiet, rude at times, honest, reserved, and very egotistical.
The female lead character, like Mai, is level-headed, smart, stubborn, and has a knack for getting into trouble.
Yamamoto Zenjirou to Moushimasu (YZM) and Shinrei Tantei Yakumo (STY) are both mangas wherein the protagonist (s) have the ability to see and speak with the dead.
Whilst YZM is a light-hearted shoujo style manga where the main character, ten year old Hotate, can see ghosts and makes friends at her new school due to these ghost seeing abilities, STY is much darker.
STY's main character Yakumo is in high school and his ability to see ghosts is due to his single red eye. Most people find his red eye eerie and discomforting and so he covers it up and doesn't use his ghost-seeing abilities that often. After having his help requested by a girl named Haruka he discovers that not everyone is frightened of his eye.
Overall the two manga are completely different in mood and characters but if you enjoy paramormal manga with a hint of romance then they are both very enjoyable. As there aren't many ghost mangas they are well worth a read!