Gang Chul and Angel are in love with each other, despite their 12-year age difference. However it is perceived as a problem and to make matters worse is that there is an unspoken rivalry between both mothers, even though they are friends.
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.