Since when did Daisy start using "Dai" as part of her English (stage) name? Or was it something that international…
shes uses the stage name Dai Si in China cause she's Uyghur her birth name is Mukdais Qurban . Her english name is Daisy Dai as Dai is the surname of her Chinese stage name. Many actors use an English name and then a Chinese surname. In this case she has an English stage name Daisy Dai and a Chinese stage name Dai Si.
https://chinaq.tw/cn190627/