Premise: Boys Republic () is a South Korean K-pop boy band consisting of five members: Onejunn, Sunwoo, Sungjun, Minsu, and Suwoong. They are Universal Music's first K-pop idol group (also managed by Happy Tribe Entertainment). Boys Republic debuted on June 5, 2013 with the single, "Party Rock". Their official fan club name is "Royal Family".
Hypothesis: There's at least one South Korean K-pop boy band with a fan club called "Royal Family".