Saki asks her classmate Narasaka Maaya to come over after school and help her study. Yuta decides to make dinner for a change so Saki can keep studying. Maaya helps Yuta with the recipe and then starts interrogating him about his relationship with Saki.
A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.