A couple with a young son were shipwrecked and rowed their lifeboats to the dense virgin forests of Africa. The couple built a treehouse on a tree as a temporary shelter, but one day they were raided by a leopard and both were killed. At the same time, Kana, the mother orangutan, was crying over the loss of her baby orangutan when she heard the cry of a baby in the distance. She followed the search to find a human baby. Driven by maternal love, Kana adopted the baby, later known as Tarzan, and took him back to his home in the forest. Since his childhood, Mount Tai has been ridiculed as ugly by his orangutan friends in his family. in order to gain everyone's recognition, he has been aiming to be an outstanding orangutan in his heart, and he has worked tirelessly to learn the orangutan's every move. In order to break the prejudice and discrimination against him by his companions, he bravely did what everyone dared not do. When he grew up, Mount Tai was a ranger in the forest. He could come and go freely climbing trees and vines, and a group of orangutan friends played around with him. Life couldn't be more comfortable. This carefree, peaceful life was finally broken with the intrusion of a human expedition. Tarzan found that he looked so much like an outsider, and he began to wonder what it was all about. ...