Oni Priest

The Oni Priest is an unnamed who requests the assistance of Ranma, Genma and Soun in dealing with an 5,000 year-old Oni which will soon escape it's sealed container.

Overview
As the priest of a shrine, the Oni Priest wears a light coloured (white in the anime) kariginu with a contrastingly dark ebōshi. The Priest has a very rectangular facial structure, with abnormally large ears and a dots on both his cheeks along with two on his forehead. The anime also shows the Priest as having black-coloured hair. Given his position, the Priest is extremely knowledgeable about the sealed Oni, including its various powers and the ways it can be exorcised from those who it possesses.

Biography
Noticing that the faded seal on the Oni's container was nearing a point where the seal would no longer be able to contain the Oni, the Priest contacted Ranma, Genma and Soun to assist him to holding down the Oni's container as he prepared the new seal. Unfortunately, thanks to Happosai's accidental interference, the Priest is unable to place the new seal, releasing the Oni's powers on Genma and eventually the close friends and rivals of Ranma.

After multiple failed attempts to re-seal the Oni, Ranma and company finally succeeding in capturing the creature and putting it back into it's container (along with Happosai in the anime ). This doesn't last for long, however, as the Oni escapes once more when the bottom of its container falls off.