Group SF9 has heightened excitement for their comeback by releasing the listening guide for their second full-length album.

The released listening guide features key points for each track, including the title song 'Without Wings,' shared personally by the members. The members candidly shared their thoughts on each song, stimulating curiosity about the new album.

The second full-length album 'TENACITY' tells the story of SF9, celebrating their 10th anniversary, looking back on their past while moving forward once again. Attention is focused on the message they will present, having grown stronger throughout their journey of chasing their dreams.