School Dayz

School Dayz (stylized as School DAYZ) is the first full length album released by 24/7 on January 30th, 2017. "5 Rules" served as the title track. The album was rereleased on April 2nd, 2017 under the title "Lucky OG" with "잘했어! (Get It Together)" as the title track.

Tracklist
School DAYZ tracklist Lucky OG tracklist
 * 1) 오늘부터 (1st Day)
 * 2) 5 Rules
 * 3) Essay
 * 4) Chorus
 * 5) Star Boy (Haneul, Inkyung, Okjoo)
 * 6) X=Y
 * 7) 일년전쟁 (Drama)
 * 8) Summer (Hyun:g, Soonjung, Kyung)
 * 9) Chemistry
 * 10) History
 * 11) 기억해줘 (MEmory)
 * 12) Graduation

italic indicates new song.
 * 1) 오늘부터 (1st Day)
 * 2) 잘했어! (Get It Together)
 * 3) 5 Rules
 * 4) Essay
 * 5) Chorus
 * 6) 전화해 (Call Me)
 * 7) Star Boy (Haneul, Inkyung, Okjoo)
 * 8) X=Y
 * 9) 일년전쟁 (Drama)
 * 10) 아니야 (Bye Boy)
 * 11) Summer (Hyun:g, Soonjung, Kyung)
 * 12) Chemistry
 * 13) History
 * 14) 기억해줘 (MEmory)
 * 15) Graduation