The roles are swapped, Papyrus was in blue archive, and sans is sad and lonely to find him before he was missing.

Papyrus was teleported to a Blue Archive before what happened in there, he never remembered the reset from the human, he's brave during become a student (like VFU sans obviously), he is a skill fighter of the kivotos, and a great friend to all of the school, but temmie join out of nowhere, he was worried about his big brother and undyne too much.