Jewel is a main character of Insanitytale and the AUs equivalent of Chara (Even though Chara did exist in that universe AND Jewel is still alive). Insanitytale was made by DeathGun347.
Jewel was a 16 year old girl who, after hearing about the stories of Frisk, went to see Mount Ebbot to see the underground for herself. When she fell down, she met Sans, Papyrus and the other human Cherry. Papyrus reacted violently towards Jewel and attacked her. Sans protected Jewel and helped her adapt to life in the underground. Jewel eventually become close to Sans and considered him her father figure.
- She has heterochromia, meaning her eyes have different colors.