They debuted on August 7, 2020 with their first single album "The First Step: Chapter One". Previously, Yang Hyun Suk revealed that upcoming groups TREASURE and MAGNUM will also promote as a full group called TREASURE 13. Check them out below!Check out the latest full-group teaser for TREASURE 13!TREASURE 13 has shared more group teaser images, featuring Bang Ye Dam, Mashiho, Junkyu, Park Jeong Woo, Asahi, and Doyoung.In the latest batch of group teaser images, TREASURE 13 features Jaehyuk, Jihoon, Ha Yoon Bin, Yoshi, Junghwan, Choi Hyun Suk, and Haruto!Teaser images of Yoshi have been revealed for TREASURE 13!Jihoon is the latest TREASURE 13 member featured in the group’s “Begin” teasers!TREASURE 13 has unveiled “Begin” teaser images of Mashiho for the group’s upcoming debut!Ha Yoon Bin is the latest TREASURE 13 member featured in the group’s “Begin” teasers!Park Jeong Woo is the next TREASURE 13 member to be featured in “Begin” teasers for the group’s upcoming debut!Check out the latest “Begin” teasers for TREASURE 13, featuring Doyoung!“Begin” images have now been released of Jaehyuk ahead of TREASURE 13’s debut!Junghwan is the next member to shine in “Begin” images for TREASURE 13’s upcoming debut!TREASURE 13 has shared new “Begin” photos for Junkyu.Choi Hyun Suk is the next member to feature in individual “Begin” photos for TREASURE 13.TREASURE 13 continues to share more photos of the members, this time featuring Bang Ye Dam.TREASURE 13 is unveiling a new photo set of the 13 members titled “Begin.” The first member to have his photos shared is Haruto.TREASURE 13 has released the first full group profile picture with all 13 members!A profile image of Mashiho and Asahi has been revealed for TREASURE 13.The latest profile picture features TREASURE 13 members Yoon Jae Hyuk, So Jung Hwan, and Junkyu!The next pair from TREASURE 13 to feature in a profile photo are Park Ji Hoon and Kim Do Young!TREASURE 13 released a two-member profile photo of Yoshi and Ha Yoon Bin!Choi Hyun Suk and Bang Ye Dam are next to feature in a two-member profile picture!After revealing individual profile pictures for the 13 members of TREASURE 13, the group has now released a new profile image of Haruto and Park Jeong Woo!TREASURE 13 has revealed profile pictures for Yoshinori, the group’s 13th and final member!TREASURE 13 has released new profile pictures for Kim Do Young!Check out the latest profile pictures from TREASURE 13 for Asahi!The latest TREASURE 13 profile photos are for member Mashiho!TREASURE 13 has shared profile photos for member Park Ji Hoon!Ha Yoon Bin is the next TREASURE 13 member to have his profile photos shared.YG has released debut profile photos for So Jung Hwan, the youngest member of TREASURE 13!The next TREASURE 13 member to have his profile photos released is Yoon Jae Hyuk.Park Jeong Woo is the next TREASURE 13 member to have his profile photos released!TREASURE 13 has revealed debut profile photos for Choi Hyun Suk!Kim Junkyu is the next member of TREASURE 13 to have his profile photos released.YG Entertainment revealed two debut profile photos of Haruto who will soon be making his debut as a member of TREASURE 13!It looks like TREASURE 13 may be coming to greet fans soon!On April 29, YG Entertainment shared two new profile photos of Bang Ye Dam of TREASURE 13. The clip features them with dancer Melvin TimTim, who they received a special lesson from.TREASURE 13 will greet fans as a full group for the first time through a V Live broadcast on February 13 at 9 p.m. KST. TREASURE 13 has shared more group teaser images, featuring Bang Ye Dam, Mashiho, Junkyu, Park Jeong Woo, Asahi, and Doyoung. They opened an official Twitter, YouTube, Instagram, and Facebook.For the first video on the YouTube channel, they released a choreography video featuring Choi Hyunsuk, Kim Doyoung, and So Junghwan. They were originally scheduled to debut sometime between May and July 2019 but it was postponed. The agency, which is reportedly referring to the members of both groups collectively as “TREASURE 13,” is said to favor the concept of having the two groups promote “both together and separately.”