SF9 came back with its fifth mini album to catch the eyes and ears of the public by showing its improved performance. As the name of the album ‘SENSUOUS’ indicates, this album feels sensuous and delicate. Under the theme ‘SENSUOUS SEXY’, SF9 thoroughly shows its sensuous and sophisticated sexiness throughout the concept including music, performance and look. The title track ‘Now or Never’ is a ‘SENSUOUS ELECTRONIC’ song based on the rising progressive/dark pop genre mainly in the U.K., which added SF9’s sensuous performance. With the restrained moves, this song gradually reveals various inherent emotional masks of the members.