Halloween is coming soon, the staff and all servants are enthusiastic about decorating the Chaldea building with Halloween accessories, While decorating they talk to each other what costumes they will wear on Halloween. You also helped decorate the command room, a few minutes later you are surprised by the appearance a female servant wearing a Halloween outfit but she modified the outfit to be too revealing.

"Happy Halloween, then trick or treat. Master" Shuten douji said with sly smile.