and having a marvelous time (слэш)

Wen Qing relaxes minutely, scrutinizing him. “Then,” she asks, “why are you here, Lan-er-gongzi?”
He thinks of seven children, living here, surrounded by ghosts, fathered — fathered? — by the one who harnesses resentment to command the dead. Children he has named, inexplicably, Lan. Wen Qionglin is a fierce corpse, and yet he apparently talks and thinks and makes his own decisions. The children call him jiujiu. The children climb on his lap and ignore his instructions and say things like “he’s dead” with a careless lilt in their voices.
Whatever the Yiling Patriarch is doing, whatever Wei Wuxian wants, Lan Wangji does not think it is an act of war.
So he does not say, “I am here to neutralize the Yiling Patriarch.”
He does not say, “Sentiment is gathering against you.”
He does not say, “First liberate, second suppress, third eliminate.”
Lying is forbidden, so Lan Wangji bows his head and says something true: “The Lan sect has very recently learned of seven disciples living in Yiling. I have come to attend their education.”
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OR: It's a Sound of Music AU. Sort of.