Wei Wuxian laughs, short and breathy, when Lan Zhan reassures him for not recognizing the name. As if his ignorance of this is a cause for sympathy. Lan Zhan is so absolutely certain, and Wei Wuxian still thinks that he's pitifully, tragically mistaken.

"Wei Ying," he repeats, tipping his head and furrowing his brow as if it does ring a bell, but there's something staged about it. In a lighter-hearted man, there might be a playful, joking pantomime about to occur. "Ah, I do remember. All smiles and bravery." Wei Wuxian nods, as though he has remembered this. "Yes, yes. I fed him to a bog creature."

He gives Lan Wangji a deadpan look, intentionally cruel as he becomes more desperate about throwing up defenses against this siege.