Rumi's met a lot of guys through her job, and it's probably fair to assume that most of them could be said to have some sort of problem, but a man who literally turns into a beast when he gets turned on may be outside of this perky call girl's field of expertise. Still, a little challenge every now and again stimulates the mind and makes life so much more interesting, so she's willing to give it a shot.
The classic tale of Gegege no Kitaro told yet again. The story is the usual in the Gegege no Kitaro series. Kitaro is a boy living in the Gegege Forest/Cemetery (lands where many Yokai roam) with his mostly dead father (who survives only in his eye), Sunakake Babaa, NekoMusume, and Konaki Jiji. One difference between this Kitaro and all of the others that came before him, is that this one has brown hair instead of the standard grayish silver.
The dark-haired bishounen is Sakon Tachibana, a puppeteer, and the other is Ukon, his favorite puppet and best friend. Sakon is the (only) grandson of Saemon Tachibana, a national treasure of Japan famous for his manipulation of Bunraku puppets. Ukon is a child doll puppet made in the early Meiji era by the famous female dollmaker Unosuke. Together they run into murders and solve them.