Ten billion lives are lost. Three million are left clawing for survival.
This is not the end. Not yet.

Micka is barely sixteen when she decides to kill herself. She doesn't fit in, doesn't understand people or rules of society. She doesn't even understand herself. To her, all words have flavors, and emotions come with such force that she can't help but carve them into her skin.

Only hours before her meticulously planned suicide, she meets Runner - a mysterious stranger who makes an offer she finds hard to reject: a life far away from home as a Sequencer's apprentice.

There are only two rules she must follow:
Survive.
Kill.