The introduction of the Saotomes and the Tendos. Representative families of the "Anything Goes School of Martial Arts".
Genma Saotome and Soun Tendo are both trained in the "Anything Goes" martial arts. They both agreed to have Ranma (Saotome's son) to marry one of the 3 daughters of Mr. Tendo. So that way the "Anything Goes" martial arts will continue on. However the Tendos will soon learn about Genma & Ranma's recent trip from China. Where they became cursed at a training grounds called Jusenkyo.—J LeGault