Borderline is an in-game event that happens at the end of each season. Pretty much, Haseyama wants to fire the cast members or disband one team, but Kei always stop him, and the borderline event happens.

In the event, the players have to work together to clear (gain enough points) for each cast member by using their cards in the performance, and once the characters have earned enough points, they are safe from getting fired. Last borderline, all the teams had to go up against each other, and though W lost, Kei decided to temporarily disband Team K and went back to America. There was also daily ranking involved, and it was a PAIN.

We don’t know what will happen this time around, but let’s hope it’s not daily ranking. But it will most likely involve team versus or gaining character points.