C427 Great Invention

Mei Ying did not see where the passageway was and could not help but ask curiously.

"You, the dignified Mei Ying, still have your doubts. Looks like the invention of this passageway is very successful. "

Mei Ying had followed him for the past few days and rarely asked questions. She had always been obedient.

At this moment, she could not help but ask