- 1 hr 50 min
A woman named Zen was born with autism, but she has developed uncanny martial-arts skills by watching TV and living next to a Muay Thai academy. Before her birth, her mother, Zin, was in a relationship with gangster No.-8 but left him for his enemy Masashi. Zin eventually chose Masashi, and as a gesture of his love, he shoots his toe. Because of No.-8's anger, Masashi forbids her from ever seeing him. Zin then tells Masashi to go to Japan because No.-8 won't hurt him there. Years after Zen's birth, Zin decides to tell Masashi about their daughter, and once No.-8 finds out about their contact, he visits her and cuts her toe off. This was a reminder of her to never see Masashi again. After going home from work, Zin sees a young boy named Moom who's bullied in the streets, so she decides to take him home. As she ages, Zin gets cancer but has no money to pay for chemotherapy treatment. So Zen and Moom try to make money by having Zen catch balls thrown at her as an entertainment stint on the streets. Although they make money, it's not enough for Zin's treatment. One day, Moom finds a list of people who received loans from Zin when she was a high-interest moneylender working for No.-8. Zen, and Moom then collect the debts from those who owe her money to pay for the cancer treatment. The first attempt is messy, as Zen fights those in debt. This then causes further confrontations with gangs and No.-8. No.-8 then finds out about what Zen's doing, so he sends Zin her toe to show her what her kids have been doing for her treatment. Zin knows there will be trouble coming, so she tells Moom to mail Masashi a letter seeking help. Moom is then captured by No.-8, and Masashi receives the note. Since Moom hasn't returned, Zin confronts No.-8.