Fibrosis

"Few words about myself?
Just don't annoy me and everyone will be alive."
Fibrosis

A character I fictionalized.
An ordinary girl suffers from a genetic disease and must die soon. But after one unplanned experiment the heroine gained the ability to absorb oxygen from any living organism. This makes her body healthier and stronger, and also gives her the ability to control the air. The heroine is addicted to her abilities, she can now live but it has changed her as a person: she has become cruel, insensitive, can kill anyone.