"Who's Hot? Hello, I'm Hyeongshin!" Hyeongshin (형신), formerly known as Yu Ha (유하), is a South Korean trainee currently under S2 Entertainment. She is a member of the upcoming girl group HOT ISSUE and a former member of the pre-debut girl group ALLS-GIRL and D-CRUNCH's pre-debut sub-unit Geupsik-Dan. She is also known for being a contestant on the competitive reality show CAP-TEEN. She is part of a dance crew named Velvety.