: Characters who provide emotional or physical "service" to help a protagonist through hardship.
Developed using the , the game is a simulation title that features: anata no machi no gohoushi ri kyonyuu sister new
The story typically revolves around a "service sister" (often a busty nun character, as indicated by the term kyonyuu or "large breasts") who travels to various towns or households. : Characters who provide emotional or physical "service"