Ruriko is the chef for Youkai Apartment. The only visible body part she has are her hands.
When she was alive, she wanted to open up her own restaurant and quit her job as a hostess in order to do so. However, one of her former customers from when she was a hostess stalked and killed her. In the process, he cut her body into small pieces, many of which still haven't been found and the last thing she saw before dying were her own hands.