Even though it's been two days since Jin, the oldest member of BTS, enlisted in the military, fans and perhaps even members are still concerned about him. This morning, Jimin posted a status line saying that he didn't know if Jin was training or not.

Not only that, when Big Hit Music uploaded a video of BTS and Jin's reunion at Yeoncheon training center, ARMYs were also touched by their affection for the oldest brother. In particular, fans and netizens noticed the expression of Jungkook - the youngest member.

Through his eyes and gestures, one can clearly see a regret and love for his brother.

On December 13, Jin became the first BTS member to do his military service after being called up by his country. Jin became a rookie of the 5th Division Recruit Training Center in Yeoncheon-gun, Gyeonggi-do. Here, he received basic military training for 5 weeks and will be deployed to active duty after that.

On the 15th, a video titled 'Jin's admission ceremony with BTS - BTS' was released on BTS' YouTube channel 'BANGTANTV'. The video shows that the BTS members were fully present to greet Jin before he enlisted in the army. When Jimin and j-hope saw Jin's short haircut, they admired him and said, "Because he's handsome, it suits him perfectly."

After that, other members like RM, SUGA, V and Jungkook also stroked Jin's short hair and joked funny. However, many ARMYs after watching the video discovered that Jungkook was unable to act spontaneously or say a word during the entire video.

He looked as if embarrassed and choked up when he saw Jin preparing to leave for a long time. Jungkook just teased Jin by taking off his hat while Jin lovingly looked at Jungkook like a little brother and touched his chin as if to say "Don't cry, everything will be okay".

In the end, Jungkook posed with Jin in a pose that showed his readiness and strength. But one finds Jungkook with eyes filled with sadness and anxiety as he watches Jin approach with the other soldiers and his back as he leaves. His eyes seemed to be wet from wanting to cry and choking.

Many ARMYs discovered this and it made them sob:

- both kside iside noticing jungkook not saying a word throughout that clip and even looking a little awkward when taking a picture together :(

- Jin touching his face as to say that don't cry

- the clip where they're stood beside each other and jin is blinking back tears and swallowing hard and then it jumps to them posing says it all, clearly something had to be cut out 

- So Jk is type of people who's silent when extremely sad. Like I will make you feel I'm here touch look at you but not say a word since 1 word will make me cry and make me sd not to go 

- We know how this two bond like Namjoon sd they can't live w/o each other 

- Reminds me of that interview clip when he’s still so young & they just debuted and he sorta said the most difficult time for him is when he see his hyung struggle and he can’t do anything about it

- this whole enlistment made that feeling of helplessness resurface

- he is the youngest and has to see all of them go before him so prolly hit him hard, he even has an elder brother who has to go one day :((

- I can't imagine his feelings.

- Not a word from him. It's too much.  It's too painful to think about.

- young jk used to cry even on stage, but jin taught him to be strong and professional, now jk is a grown up man, he knew, jin don't like seeing him cry esp in this situation.

Jin was the one who stayed by his side and took care of Jungkook when he was 15 years old. Jin used to drive Jungkook to school and take him to school for admission and graduation. And now, a mature and well-bred Jungkook is sending his brother off to the army. That moment was really great.

All netizens who saw this commented:

- They are so warm and touching

- They look great, so cool

- I hope they will have a nice trip back in good health

- Jungkook's eyes are naturally moist

- They may be seen as crying because of their sparkling eyes.

- They basically can’t live without each other