A series of one-sentence what-ifs:
What if, when Yu Sifeng sealed the colored glass cup with his twelve feathers, Chu Xuanji's heart was split in two by Juntian Cehai, and half of her colored-glass heart became a fragment of consciousness that stayed by Sifeng's side for two whole years...
One half was Xuanji, who had yet to awaken her six senses and followed Sifeng wholeheartedly on instinct. The other half was Chu Xuanji, whose heart had grown flesh and blood, who understood love, recognized friends and family, could tell right from wrong, yet hurt Sifeng more deeply than anyone.
A spontaneous idea. Neither the writing nor the premise can stand up to scrutiny.
Theme: None.