This is Grim Fandango x Undertale crossover. Manny Calavera,even though he is no longer working in the D.O.D,he still have to carry his duties as a reaper due to the cycle effect. Life and Death is necessary. In this story,Manny is supposed to reap Frisk's soul until he has to follow their journey. (This is inspired by grim fandango x undertale comic)