The Beginning

This is a reader insert

(Y/n) (L/n) also known as Insominiac is a CreepyPasta. She was walking around in a neighboring forest next to Slenderwoods. She then soon came by a hole and felt something pull her in. She has a high LV for all of her murders. She doesn't kill innocent unless told to.

What would happen when the residence of the underground met this killer? Would she free all the monsters or will she kill to calm her bloodlust? And will her fellow Creepypasta follow her?

Creepypasta x Reader x Undertale

You are also the adopted daughter of Slenderman