Hot Issue (stylized HOT ISSUE, Hangul: 핫이슈) was a seven-member girl group under S2 Entertainment. The group consisted of Nahyun, Mayna, Hyeongshin, Dana, Yewon, Yebin and Dain. Their group name stands as an abbreviation of "Honest, Outstanding and Terrific" + "Issue" and their official fandom name is SURE, an acronym for "Surely U (yours) Refulgently Ever". The name describes how Hot Issue and its fans will be together forever. Sometime in 2020, S2 Entertainment was founded by Cube co-founder Hong Seung Sung.