Guns and Roses (Gaster Sans x Badass Reader)

[WARNING! THERE IS CUSSING AHEAD!]

(Y/N) (L/N) is seen as a loner at her town, Moonlight Valley. But when a person goes to far she heads out for Mount Ebott. The rumors are that those who go there never return. She saw a chasm and jumped, she should've died. But miraculously she survived, she meets many incredible monsters along the way and discovers many new things. But will she show them who she really is?