The door opens and Sizhui smiles politely up at the man, doe-eyed and looking almost too innocent for this to be merely a coincidence (Almost.) He lifts his free arm, rests his hand against the doorframe, just in case Jiang Cheng gets the idea of closing him out.

“That's alright,” he reassures. “Perhaps you can help me instead? See, I had a few questions about school events that may need to be chaperoned...” Rubbish, but if it gets him inside, that's what matters.