Demon Fighter Kocho厄災仔寵; Yakusai Kochou; 厄災仔竃; Calamity Kochō; 厄灾仔宠

Unlucky student meets a girl that offers to exorcise a bad spirit possessing him, and from then on they go to solve many spiritual cases (almost always involving nudity) - although she tends to screw up more often than she succeeds.