One

Get it? Youngblood? No?

Okay.

Subject 321 was a monster. A beast. Or a test subject. Your choice. The Cult stole her from her family when she was only five, and then they gave her the serum. It made her lose all control only seconds after she heard music. Knowing her kidnappers, her control was in their hands.

After escaping with a clever plan, she falls into the hands of the Youngbloods, who are against the rise of the cult. With only the trust of Patrick, a fellow subject, the two make a plan to finally put an end to the cult.