(spoiler) mc feel betrayed when the person he was talking to was ml who are known homophobic.
historical
(Spoiler) The empress and emperor have good relationship during childhood but now they became distant. Soon the emperor found himself a concubine and she is pregnant. He was planning to make this child as the crown prince, by divorcing the wife and make the concubine the empress. He will be then remarry the ex wife. Of course, his plan backfired when the empress remarried the neighboring prince.
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