The boy he tutors has a sister, Wang Biyun. They fall in love. But he’s a leftist and leaves Taiwan to fight for a new China. They make a pledge to see each other one day. On the mainland Chen Xiushui is active in the Korean War as a doctor and a soldier and later in rebuilding the country, working in Tibet. He changes his name to Xu Xiuyun. A woman by the name Wang Jindi, also a soldier, falls in love with him, but he is still thinking of Wang