He is the prince of peonies, but he likes gardenias the most because of their seclusion and pleasant fragrance, just like him. He is over 20 years old, but his appearance is very enchanting. Although he is a man, he has the carefulness and enchantment of a woman. Although he is a woman, he also has the essence and general military strategy of a man. His character Sometimes he is gentle and sometimes icy, sometimes he has the world in mind and sometimes he is clinging to the palace. His tragedy is that it is very difficult to love someone but not know whether you are loved by him or not. He is Li Jiancheng, he is a butterfly, a flowery and resolute butterfly... Please walk into his story with me, appreciate his perfection, and feel his sadness.
——Inscription of "Qin Yin Tian Xia·Moon Ning Alluring City", ALL Li Jiancheng, Min Cheng, Du Cheng, (Micro: Jicheng, Wei Cheng, Guangcheng)
Adapted from Anonymous's "The Prequel to the Tang Dynasty", most of it is self-constructed, with different stories and the same ending.