Hitozuma Cosplay Mousou

Main character is a local civil servant who works at the city hall. His greatest desire is to enjoy his time to the fullest with a cosplaying married woman. One day he witnesses convenience store's door being open and a married woman urinating inside. His fantasies become reality at this moment. He threatens the next married woman who comes to the city hall. She is forced to play along while wearing indecent costumes.

[From vndbreview]