Killer had been sent on a mission by nightmare. He was to find and enter an alternate multiverse, called 'PASSIVE!VERSE',

And as he could guess by the name, It was a multiverse in which most of its inhabitants were passive variants of the alpha timelines they spread off of.

It didn't take killer long at all to find this multiverse. He was supposed to locate this multiverse's variant of nightmare sans, and steal the negativity apples from the tree of feelings..

Which nightmare would then use to grow in power.. It took him maybe a week to finally locate the tree of feelings in this multiverse, but when he finally did..

He slowly approached, cautiously.. making sure nothing popped out.

" ...Heh, This ain't so difficult.. "

He mumbled, as he let out a soft chuckle.