Beat it with sans friday night funkin and win the ex event!
Sans finally have a time to meet them. He is waiting them to come soon but suddenly boyfriend come and asking for a small battle with sans? Of course, sans friday night funkin refuse to accept it but because it's bf who really want find a new friend, then sans will have no option but only to all in with competition.
He never serious with music, sans just want to leave bf but still, boyfriend refuse it and dust san has no desire and still don't want to continue his battle. But at this moment, ink sans want to unleash all his true skill and no more playing safe! Dust sans friday night funkin finally is about to serious crushing the battle itself and bf have a bad time. He need to be start focusing from now and later.
Remember! make sure you win it and do not make sans angry or you might end up having really bad time. In final end, it will reveal sans friday night funkin next underverse easter egg where you can find the x event or xchara.