I think the OP forgot the character's name. Wei Xuan (Wei Yan's son) is not his biological son. Wei Yan married the mother knowing she was pregnant to save her from her relatives who wanted to kill her. She was supposed to marry someone else but fled with a soldier. Unfortunately he died in battle. That's why Wei Yan's relationship with his wife is formal. They are married in name only.
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#2nd week for PoJ in Netflix top 10 for non-English shows. 1.8 million views this week. Not much, but as we know, most cdrama fans watch on iQIYI or WeTV. https://www.netflix.com/tudum/top10/tv-non-english
The completed rating was 7.99 on Saturday morning (I took a screenshot at 9 AM GMT). This was before the leaks became public knowledge. So most likely trolls who downgraded the drama + people who voted 10 and marked as completed to counteract them.
Wei Sheng is a subordinate of Wei Yan
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https://kisskh.at/discussions/760409-zhu-yu/140166-novels-like-chasing-jade-zhu-yu
https://kisskh.at/discussions/760409-zhu-yu/140166-novels-like-chasing-jade-zhu-yu
https://vm.tiktok.com/ZNRxvoL7H/
https://www.netflix.com/tudum/top10/tv-non-english