Is it weird that a big star is a senior sister?

Lilian Lin and the other three all widened their beautiful eyes, with only surprise in their eyes. Looked at Lambert Ye. He looked at the big star Gu Qingcheng again. These two people are actually senior and junior sisters? Ah this. This is too outrageous! The world-renowned superstar Gu Qingcheng is actually this guy's senior sister! "Hasn't my junior brother told you yet?" "Then let me formally introduce myself. I am his third senior sister." Gu Qingcheng said with a sweet smile. Looking...