This what if story is a bit sad but I did enjoyed reading it !

The Crimson Mage.

I'll just say I like the idea. I'm going to read further, but I'd like to inform you that 'Torial' should be 'Toriel'.

Wow. Wonder if sans will panic here in a minute about that. Poor Gaster, just wanted to prioritize his family. The story felt a little disjointed after the teleport. It was understandable, but didn't always flow like the first half of the chapter. Other than that it was another awesome chapter

So this time he is wearing a dog mask instead of a cats eh? That does seem a little OFF might we see a baseball bat as well?

When is the next chapter going to come out. ?.!

Ps .amazing story

This is a good backstory for Gaster! A for your good work!

It's not bad! Keep up the good work~

Doggo, no! Stop draining him from DETERMINATION!(?)

So... So far it's Papyrus' orange soul is bravery, Gaster's aqua one is perseverance. What's dark blue?

so they know about the barrier makes sense.

Hay is for horses, but Hey is used to gain people's attention like Oi or Yo.

You don't put a period in front of Miss but you do put a period in front of Mrs. Or Ms.

enough determination to make the mercy button reappear.

pun in the title.

This is pretty good, a few errors, but, I don't care. Keep it up.