When does Seventeen: Our Chapter return?

The group consists of 13 members: S.Coups, Jeonghan, Joshua, Jun, Hoshi, Wonwoo, Woozi, Mingyu, Vernon, and Dino. The group debuted on May 26, 2015, with the extended play (EP) 17 Carat, which became the longest-charting K-pop album of the year in the US and the only rookie album to appear on Billboard's "10 Best K-Pop Albums of 2015" The name Seventeen is derived from the expression "13 members + 3 teams + 1 group"