Black is a demon youtuber who seeks to expose the “hidden side” of people to film for his youtube channel . He does this by getting people to sign contracts that seem to be fulfilling a desire of the person, but it backfires in hilarious and sometimes heartwarming ways, exposing the “hidden side”. “Ore-chan” is the first person pronoun that Black uses. He films with Camera chan, who is his valued partner. He is friends with Satoshi, a school student. When he laught, he say "kakaka"
