I knew ive seen them before. When i saw on the side of youtube it said sf9 debut album so i clicked on it then looked them up and i saw Juho first and was like I KNOW HIM!!!!! Then i looked up click your heart and went to images and all of them were in the school uniforms from the show.....gotta watch your K-Dramas to have ties cause they were on the show first then debuted....crazy!