Chara, abused and tired of humanity, runs away. Their destination, the forest adjacent to Mt. Ebott. Those who go to the mountain, are said to disappear, and there's nothing they want more than to disappear. Once fallen, they discover the Underground. Asriel, Toriel, Asgore, and so many others. They tentatively explore their new home, and new beginnings. How will they adjust to a world completely different from the one they escaped?
This will probably be a bunch of platonic Chara and Asriel being adorable, cute moments with the Dreemurrs, angst, kids being kids, underground shenanigans.
Warnings: This may later on deal with Chara and Asriel having conversations about suicide. It won't go into detail or be graphic, but the concept is mentioned. Chara is referred to as they/them exclusively in this story, as is Frisk. It is completely SFW, however. They're children, ya nasties.
The barrier is broken, monsters and humans are living in peace, everyone is happy except for one person. Frisk has been getting waking nightmares about not saving Asriel. They want to save him to erase all guilt and to be with their friend. But Asriel isn't the only one that needs to be saved. Something, someone lurks inside Frisk's soul. Someone deadly and has a hunger for power, and can kill anyone they want.
A/N Frisk and Chara are both gender ambiguous in this story. Also there will be a little bit of Frisk x Asriel in this story, but this is not a Frisk x Asriel fanfiction. Credit to @karinacat59 for the cover. Undertale belongs to Toby Fox and none of the characters are mine.