Mo signs Mikki up for a karaoke competition which sends her into an anxiety spiral. She just loves singing but - plot twist! - doesn't want to sing in front of her friends, family or any cool teenagers.
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.