C217 Do you know guo yi

"Eh? "Yisan, did you run into a ghost or something? You're out of breath!" Maki Zin didn't find Prince Kang and instead, crashed into him while panting heavily.

"You're so annoying!" Yi Shan took two steps back and shrugged his cute little nose. "Guo Yi, let me ask you a question, is it okay if your teacher answers me?"

"Uh, no problem. What is it?"

"Very serious