Tong Wei and his younger brother, Tong Meng, live in Jieyang Ridge. They are excellent swimmers and boatmen. They trade salt for a living. Tong Wei is one of the leaders of the Liangshan navy. After the campaign against the rebel leader Fang La, he doesn’t go back to the capital. He and Li Jun travell to the port-city Taicang, set sail into the open sea, and eventually arrive in Siam (Thailand). Li Jun becomes the king of Siam while the Tong brothers and his companions become his subjects.