One and Only S01E05 - The Crown Prince falls deeper for Cui Shi Yi

Zhou Sheng Chen moves to the military camp as he was not interested in getting involved with other royalties and also wanted to give some space for The Crown Prince and Cui Shi Yi. The Crown Prince, Liu Zi Xing arrives at Nancheng mansion, meets Shi Yi, and takes an instant liking to her. Taking the chance of Shi Yi's birthday, Liu Zi Xing goes to the military camp to meet Zhou Sheng Chen. He notices the relationship of Zhou Sheng Chen and Cui Shi Yi is more than a "teacher-student" relationship.