Ready Aim Fire (MHA O/C story x Dabi)

Enter Kyra a fiery young girl, who doesn't believe in heroes because of their failure in her past. Yet fate has decided that she will be taken into UA's "exclusive" Night class program. she begins to learn about herself and how to be the hero that can save everyone. But life never stays on the straight path for her, her world starts taking dips and dives, sending her on emotional rollercoasters again and again. Who is this strange guy she keeps seeing?
What is going on with her quirk?

Who is she really?