(This is made with the limited knowledge i have, sorry)

It was after the 10th boss, you could get back home to layer one, but then Zero told your group that he meant the 100th which made some of the others angry... but it made you devastated... each boss was after 10 levels, meaning you were already at level 100 but now... you had to get to level 1000

You had to leave the area to be alone for a bit. Maybe to recollect your thoughts, to cry out of frustration, or to just rest... but Promise had seen what happened and decided to go over... to easedrop of course...

he walked over, nonchalantly hiding behind one of the rocks to see what you were doing

"..."