Tracklist:
1. “The Hare and the Tortoise (토끼와 거북이)” – 3:44
2. “Back Door” – 3:09 (title track)
3. “B Me” – 3:25
4. “Any (아니)” – 2:49
5. “Ex (미친 놈)” – 3:37
6. “We Go” (Bang Chan, Changbin, Han) – 2:38
7. “Wow” (Lee Know, Hyunjin, Felix) – 3:14
8. “My Universe” (Seungmin, I.N, Changbin) – 3:23
9. “God’s Menu (神메뉴)” – 2:48
10. “Easy” – 3:03
11. “Pacemaker” – 3:11
12. “Airplane (비행기)” – 3:35
13. “Another Day (일상)” – 2:47
14. “Phobia” – 3:33
15. “Blueprint (청사진)” – 4:11
16. “Ta (타)” – 3:29
17. “Haven” – 3:20
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