Chewing gum

MV: Chewing Gum (24 August 2016)

Related Videos:
Teaser 1 & 2 (22 and 23 Aug)
Chinese Teaser 1 & 2 (22 and 23 Aug)
Chinese Version (24 Aug)
Making Film (14 Sep)
Hoverboard Performance vídeo (8 Oct)
Beyond the MV (23 Dec)
MV Shooting Sketch (Sep 6, 2016)

Album: The First

Members: Mark, Renjun, Jeno, Haechan, Jaemin, Chenle, and Jisung.

Theories: https://aminoapps.com/c/k-pop/page/blog/mv-theories-chewing-gum/JqId_uW6W7nnP2mpkn7GooKJRRkqd

Comments:
The teacher from this MV is a model, his instagram handle is artistboy_ .
"Beyond the MV" doesn't have English subtitles on YouTube.
All the members were around 15 years old then.

iTunes Digital Booklet: https://www.facebook.com/media/set/?set=a.1277679458923050&type=3
Official Teasers: https://www.facebook.com/media/set/?set=a.1273801459310850&type=3