"What's this?" Mu Yu withdrew her gaze and took the box with suspicion.

"I'm not sure."

MuYu took a close look at the box, it was a small rectangular looking ordinary suede box, with only a simple bow tied with a ribbon on the outside.

Untying the bow, she gently opened the box, only to see a very unassuming black pen lying inside.

"It's a recording pen!" Liu Xiaofan reminded gently from the side.

A tape recorder?

Mu then closed the box.

Since it was ...