It was all based on my ideas, and I was a bit obsessed with Hulan, so Tang Xiaohu was indispensable as the "stirring stick" between Gao Qilan and An Xin. (I don't know if writing about Tang Xiaohu's pursuit of Gao Qilan is superfluous or the finishing touch, but whatever.)
Concept: The moon fell in love with the sun, a seemingly impossible thing, but it came true