Eridan makes friends with Frisk online by mistake and after getting in a couple of fights with his friends, goes to visit. With the Orphaner off planet, all hell is breaking loose with Feferi and his friends back home. [A Homestuck/Undertale au where Eridan travels, Underground is its own planet, and Frisk is the only on who can one up the purple prince]

Do you think even the worse person can change? That everybody can be a good person, if they just try? Do you think that someone certain they are destined to be the villain, can be a hero? Eridan Ampora is certain that a true villain like himself can never be redeemed. But when he somehow accidentally cheats death and ends up in the underground, his ideas are put to the test.