Based on the true story of Thailand's famed transgender kickboxer, Parinya Charoenphol. Believing he's a girl trapped in a boy's body since childhood, Parinya Charoenphol (affectionately known as Nong Toom in Thailand) sets out to master the most masculine and lethal sport of Muay Thai (Thai kickboxing) to earn a living and to achieve his ultimate goal of total femininity. Nong Toom life goes from his teenage years as a traveling monk, to grueling days in boxing camps, to explosive matches where he knocks out most of his opponents across Thailand and Japan.