Thank you so much! Your English is great; way better than my non-existent Chinese! Can you clarify, google translate tells me (in this video and some other article) that they started calling each other sisters when they were "5 years old"? Is that a mistranslation of "5 years ago"? This is such a cute video :)
爱心站白龙冠天 zhu yi long is so cute wanting to be the older sister even though he's younger. I've noticed even though he seems chill, he keeps bossing people (Bai Yu) around :D