Note that I am putting in the english translation of the video itself. ^^ MediaVop, the uploader and the one who took the video said in the comment (they deleted it an hour later): 2NE1 Sandara Park and Gummy were on location, and shared a meal with Se7en before he went to the enlistment camp. So yay, here is our confirmation that Dara and Gummy really went! ^^ I love their friendship! ❤ At 2:15-2:19, Se7en mentions that Dara and Gummy were there as well and thanked them for their support even until that moment when they went with him to the camp. ^^
Se7en Enlistment: 2NE1∙SNSD Please Come for Consolation (SE7EN joined army)
Credits: MediaVop
oh-dara.com 
Comments on: "Video: Media Coverage of Se7en’s Enlistment – Dara and Gummy Were Confirmed on Location" (4)
what about his girlfriend? did she go aswell?
Reblogged this on hartfillia and commented:
you shuld also add ren frm nuest and chanyeol as fanboys
really love their friendship…that’s all i can say…..goodluck to seven,,,and i’m looking forward for 2ne1 to visit him…and see dara wear pretty short skirt,,,lol
my instinct did not fail me. I know they are really there