This was actually how I was first introduced to BTS back in the day and I couldn't get over how YOUNG they were!
HE LITERALLY SAYS "ADIOS MIDDLE SCHOOL" AT 0:30
This is Jungkook's definition of being an adult:
I felt like I’ve become an adult
I went out with friends,
drank coffee, and shopped
And the best part:
My friends asks when is your debut?
Are you curious? If you’re curious it’s 500 won
I’m almost there, I’ll come out when the time is right
so why don’t you guys prepare to do fan activities~
Because I was a trainee,
I had no time to regret anything
once again I stand on the starting line.