“… Is ‘mercy’ so powerful…? Even if you gain no LV? I don’t want to be weak, Frisk. I don’t us to be hurt. No more, not anymore. Show me your way, then. Prove to me… that you can win the game with mercy.”

Aaaaand cue REDEMPTION RUN, where Chara learns the meaning of M E R C Y and their soul can rest in peace, rather than being corrupted, and you atone for your sins by making everyone happy. Be a good kid, okay?

Phew, well, this was an adventure :D Hope you all enjoyed the comic!

Headcanons/explanations under the cut~