The one who's left behind || NCT DREAM[ ✔ ]

We all have friends, and a group of friends is sometimes called as a "SQUAD". Stick with your own squad and nothing wrong will happen to you. But there's this group of friends who applied a rule on it. Just be friends of the "squad" and make them your only friends, and if you'll quit the group, you'll never be a friend of them again and you must never have a friend with some body else.