This is a comical parody of bits of the beginning story set from Undertale and a couple situations that are after, but not to the "boss fight" against Toriel.

I'm sure we all want to know about her 401k.

This is to put more emphasis on comedy and the fetishes that follow after this. Instead of Frisk having to fight Toriel she tries other methods to get her to stay...which all backfire.

First up, just like in the game Flowey tries to kill the protagonist after tricking them, then Toriel see's what's happening from a distance.