NCT 127 - 1st Regular Album [NCT #127 Regular-Irregular]

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1. 2 covers: Regular Ver. / Irregular Ver.

2. 1 type of lyric paper 

3. On-pack composition (different images for each version)

4. Regular Ver. : Photo book, CD-R, photo card (1 type random out of 10 types)

5. Irregular Ver. : Photo book, CD-R, photo card (1 type random out of 10 types)