a light hidden and singing (слэш)

Since he was a child, since Lan Wangji had first become aware of his own alienating effect on others, he has long resigned himself to a loveless marriage. Perhaps even a companionate one, so long as his partner was agreeable and unbothersome and let him have his own space.
He could not have even begun to predict Wei Wuxian.
(A canonverse arranged marriage fic.)