"Zewu-Jun. You once told me about a house surrounded by gentians, where you visited once a month, and how Lan Zhan still waited there, even when the door no longer opened." Xichen feels light-headed. He feels shocked, and angry. He has never told anyone such a thing, but Lan Zhan is giving Xichen a look of utter betrayal. "You told him?" Lan Zhan whispers. "When?" Wei Wuxian takes Lan Zhan's hand. "About twenty years from now." Wei Wuxian starts again from the beginning.

Lan Zhan had never expected to marry. So of course, fate would have it that he was wed to Wei Ying's beloved shidi, just as they had become close, somewhere between friends and companions. aka Canon Divergent AU where coreless!JC marries LWJ, complicated feelings ensue. Eventual zhanchengxian.