**FREE VIDEO** | CORTIS (코르티스) Documentary ‘What We Want' EPISODE 04 | REACTION

Sorry I’m kinda late but Seonghyeon was actually already introduced in an episode with martin. They said that while Martin was the studious type, Seonghyeon had a lot of raw talent for production and fun fact, he already had over 100 self produced tracks on his laptop before debut! He also has a great voice