Even an elementary school student knows not to casually eat food given by a stranger.
Let alone a group of college students, especially when they are fully aware that the other party is a dangerous Black Wizard. Zheng Qing absolutely couldn't fathom why the eerie figure behind the door, named Engla, still persisted in trying to sell them his mushroom soup.
Just as he couldn't understand why this Engla, from beginning to end, would only expose his head outside the door and refused to step out.
But as a student of the First University and as a Wizard, he couldn't hysterically reject the invitation of the old house's owner. So the Warlock politely declined, "Thank you, we're neither hungry… nor thirsty."
