Why? (An Undertale Fanfic)

Ziara, Zia for short, is the unknown sister of Chara, like Chara she has red eyes, she is bullied as school and abused at home because of it.

After a while, she has had enough and while sitting by the hole in her favorite place in Mt.Ebott, she jumps. When in the underground her first instinct is to spare the monsters but then she changes her mind.

She does genocide after genocide and at the end of each one Chara reveals more and more to to her, until eventually Chara has the strength to return.

**I own nothing apart from the storyline and Ziara**

**Frisk has already left the underground**