You were a new uppermoon you just became one and you were already respected and loved by all the other uppermoons one refuses to speak with you which is uppermoon one, Kokushibo but you see him eyeing you time to time

You were killing a bunch of demon slayers eventually they all just collapse on the floor you were wondering why until Kokushibo was now in your view

"You need to kill them faster or you'll never become stronger."