The "ghost" client's story made me really emotional. There's barely no information about him and his lover, but for him to mysterious show up to give his lover's ring back to its rightful owner. And the fact that the ring was made with his remains made it even sadder. The lover mentioned a thing about not telling where his grave is, and the deceased lover's family. I know they had it rough.
This needs sex lol, after making us feel something about that confession...you can't just leave us hanging.
Tantei to Neko-chan