eliteles1:
It will depend on the interpretation. After all they are actors. (And in Love and Redemption, they were like siblings.) But, it is undeniable that the actor who made Wu Tong has a strong chemistry with her (in the first fan meet), she said that another character she would do (would be the character of Wu Tong). But ... as for her chemistry with Cheng Yi (it will depend on the interpretation), because in the posture (they match), she doesn't look older than he (and she is a very competent actress) and Cheng Yi is such an actor competent as. (Of course, I'll watch. Cheng Yi is there.) .
Chemistry is subjective and everyone has a different opinion. There are CP's chemistry that make everyone agree and others with mixed feelings. It's true , in a part it's depend on their acting skills if they can sold the romance or not but mostly if it's clicks on screen or not.
For me, the chemistry can be seen from their first interaction on the screen. Then, depending on the story, you ship them or not. For example in L&R, Linglong and Wu Tong had chemistry from their first interaction, but the story made people rooting for Minyan more, chemitry speaking they were a bit bland but their love was touching.