Destined, what a cruel answer.
Yu Sheng, originally thought that love is like Zhuang Zhou dreaming of butterflies, and butterflies dreaming of Zhuang Zhou, looking forward to each other; like the breeze and the bright moon, the years are quiet and good; no matter how bad it is, it is at least true. But I forgot that Zhuang Zhou dreamed of butterflies, a big dream - if you can't force it, it's just destined to miss it.
Song Jing, he personally destroyed Yu Sheng and ran towards the "rest of his life". But he also lost the rest of his life and became Yu Sheng.
Purpose: I regretted the pain of destroying my beloved with my own hands.