Cai He 蔡和

Cai He is a fictional character, created by Luo Guanzhong, who appears in the novel Romance of the Three Kingdoms and various Three Kingdoms games by Koei.

Biography
Cousin of Cai Mao. Surrendered to Wu with Cai Zhong just before the Battle of Chi Bi. However, Zhou Yu saw that his surrender was false and used him to spread disinformation among his true allies in Wei.