I didn't explain the best in the description, so I'll do a better job now.
Basically, Lust and his Gaster get married, or as monsters call it, soulbonded. It's a few years later, and cross-AU meetings start. Lust gets a letter from the alphaverse, stating that he should come with his brother. Gaster goes with him to keep him and his brother safe. People start yelling and accusing Lust of stuff that he doesn't even partake in in his AU, and Gaster and Paps can't do anything to stop it. Fellswap Sans, or as he's called in this, Razz, comes to his rescue and in turn starts yelling at the people who are being mean to Lust. Other stuff after that will happen too, don't worry.
There will probably be angst, so if you don't like that kind of stuff, don't read this. If you aren't a fan of Underlust, don't read this. If you are, and don't want to see the bean get mentally abused, don't read this. If you do like the Lusty bean, and want to read this even knowing he'll be traumatized, go ahead and read this!
YOU ARE READING
Understanding
FanfictionFollows Lust Sans and Lust Gaster through judgement and pain from their alternates. I took some inspiration for the characters from MageOfLight on Ao3 If any of you have it, I suggest checking her out, especially if you like Underfell Sans.
