K-pop boy group Seventeen's vocalists Jeonghan and Joshua will launch the group's new unit with their first EP, "Dreamscape," next month, the group's agency said Wednesday. Pledis Entertainment said "Dreamscape," set for release Oct. 19, portrays a "dreamlike realm" in which two notions of dreaming — unconscious fantasies that surface during sleep and the ideals people pursue in waking life — endlessly intertwine and collide. "On the new release, Jeonghan and Joshua become dreamers, offering an audio-visual rapture through the unfamiliar beauty they discover at the point where the boundaries of the two dreams dissolve," Pledis said in a release.