He Ji

He Ji (何楖), officially known as Prince Ji of Huainan (淮南王楖), is the oldest son of the Chengyuan Emperor, by the former noble consort Du Yueyu.

During the quest, he will likely be known as Prince Ji, or the Prince of Huainan. His general term of address by subordinates will be Your Highness.

Description
Prince Ji is known for being good looking in a gentle, scholarly way. He is tall, standing some 7 feet and 7 inches (182 cm), and slender; it is said that he could be mistaken for a woman when seen from behind.

Background
Prince Ji was born in the 24th year of Xuanfeng. His mother, Du Yueyu, is from the Du Clan of Taiyuan, a powerful refugee clan from the north.

As he was already 10 years old at the accession of the Chengyuan Emperor, he was granted the princely title of Prince of Huainan upon his father's accession.

Even though Prince Ji is the oldest of the princes, his position as a potential successor is not particularly strong. This is partly due to his mother, who is currently imprisoned in the Palace of Penance and therefore disgraced.