Frisk X Chara ≫ Charisk (*DISCONTINUED*)
Frisk has fell down Mount Ebott to be greeted with someone the opposite of her, a murderer who wants to take over the whole underground. Frisk learns that Chara is a ghost and only someone with a human soul is able to see her. The two make a deal, if Chara helps Frisk back to the surface then Frisk would help Chara receive another human soul. But on the way, the two will start to have feelings for one another.
Disclaimer: I do not own any of the characters in Undertale, I'm just another fangirl making Fanfiction! Also, I might change up a lot of things here and there in this story. Enjoy!