Nian Xi didn't know what to say.
She considered herself a thick-skinned person but didn't expect that he was thick-skinned too.
He had already learned to promote himself.
Under his innocent gaze, Nian Xi coughed slightly, said, "Didn't I agree to let you clean my apartment?"
"I mean, I want to clean your apartment forever," Jiang Yuning curved his lips corners downward with a grievance.
"Aren't you going too far tonight?" Nian Xi said seriously, "You haven't cleaned my apartment even once, but you already asked to clean it forever. How am I supposed to know that you'll do exactly what you said? Who knows if you'll give up on me because my apartment is too messy?"
"I won't," Jiang Yuming shook his head determinedly, "Persistence is the most important quality of scientists."