They released BORDER : DAY ONE on November 30, 2020. Intro : Walk the Line, Given-Taken, Let Me In (20 CUBE), 10 Months, Flicker, and Outro : Cross the Line are included in this album. Given-Taken is the title song. There are music videos of Given-Taken,  Let Me In (20 CUBE) and Outro : Cross the Line. The albums sold 229,991 copies on the first day. In Japan, it won the 1st place on the iTunes "Top Album" chart, and on December 4, it also won the 1st place on "The Real-Time Top 100" chart of LINE MUSIC.