In 1905, revolutionist Sun Yat-Sen visits Hong Kong to discuss plans with Tongmenghui members to overthrow the Qing dynasty. But when they find out that assassins have been sent to kill him, they assemble a group of protectors to prevent any attacks.
Mari Hirakawa is a woman who inherits her father's karate dojo. However, she finds out that Chan Keung, her father's former student, is also its heir and they fight to determine its sole owner.