This takes place in the genocide route. Frisk is murdering everyone they come across. After she goes into Waterfall and makes her way to a restaurant, she runs into you. You invite her to dinner in which she agrees. You both sit across from each other just staring at one another. The room has only candles on the table which light the dark room but no one else is in the restaurant.

"...Well?" Frisk speaks for the first time which takes you slightly off guard.