Hoseok and Jimin keep visiting until they enter university. Then they stop, because the boys are all grown up now.
Taehyung is two years older and he’s the first to not receive visits. He’s sad, but he doesn’t tell Kookie, because they talk on Skype and kkt and he always talks so excitedly about playing with the kids and hanging out, he doesn’t want to ruin it for him.
But then Jimin stops visiting on Kookie’s 20th birthday and he finds out they won’t be coming any more. Of course he’s sad, but he gets accepted at the same university as Tae so at lest they have each other