The Sai Fan is a global secret society.
The Sai Fan is a shadowy, mysterious secret society among the Chinese. It's a Triad which exists within the Triads, which is separate and independent from the Triads itself. Whose leadership and organizational structure is unknown, as is the origins of the society or what is its goals. It's a global organization with members from many Triads, including those that are rivals or enemies. The Triad is ethnically segregated and only Han Chinese are invited to join.