I (Don't) Promise || Gaster!Sans x Reader

(Y/N) is a homeless runaway who tries to survive and hide from the new government that has changed many lives. Ever since her house has been raided and her family was killed before her eyes, she has set her life to finding her lost-and possibly alive-sibling Frisk.

One day, (Y/N) is cornered by government soldiers who believe that she is a rebel. Just when (Y/N) thought that it was the end, a mysterious savior swoops in and saves her from the soldiers. The man turned out to be a skeleton that went by the name G and G only.

Due to certain circumstances, they are forced to stick together and fight for survival to complete the one goal that they share: over turn the government and restore piece to the city and world.

All the while, (Y/N) starts to make promises to G. He isn't too fond of this but eventually begins to promise to (Y/N) as well.

Time are rough as their days together lengthen and the promise's only increase. Only thing is, can they keep their words, or risk ruining their friendship and possibly, their lives.

Cover drawn by me
Cover edited by @seven-zero-seven