Not Alone (Gaster X Skeleton!reader fanfic)

Author's note:

Brrrr this is my first ever fanfic I've ever made sksksk and for the first time, the reason for this is bc I got an idea for Gaster X reader fanfic! I guess I got inspired by other Gaster X reader fanfics or then it's (was) just an alternative version of my OC Thiara (whose a skeleton) "arrive" to the underground rather than canonically/officially being already in there, don't know! it can be both^^
But my god- I'm a bit scared tho lol since I've never done this before, I don't really want to make the characters wrong or something (might be off-character idk),,,
But uh- yea, read below for the story description now,,

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(Y/N) is a skeleton who weren't trapped underground like the rest of the monsters when barrier was casted, but instead hid with her/his/their mother and her/his/their twin, but were one day found and captured.. or at least (Y/N) was. Their family wanted to rescue them, they all managed to run to the mountain where the barrier was casted, but the humans had catched up, only (Y/N) was able to get through the barrier to safety.. or rather pushed in as their rest of the family was killed.

From there (Y/N) was found by queen Toriel and were taken for better healing to a certain royal scientist; W.D.Gaster! The story continues on.....

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All the Undertale characters belongs to Toby Fox!!!
Reader belongs to you^^
I might give out some additional OCs or not, depends!
Now babai~

Edit: I'll be using they/them pronounces for the reader-- might've forgotten to mention it before publishing anything,,,