No. Most mainstream platforms do not support or allow fanfiction that involves inappropriate or non - canon concepts like 'inheriting concubines' which goes against the original spirit of the Harry Potter series.
There might not be any on the major and well - regulated platforms. The Harry Potter franchise is known for its magical world, friendship, and adventure themes. The idea of 'inheriting concubines' is a very different and often not in line with the family - friendly and moral values that the official series promotes. So, it's very unlikely to find such fanfiction in the normal places where Harry Potter fan works are hosted.
I'm quite certain there's no such fanfiction on mainstream platforms. The Harry Potter world created by J.K. Rowling is centered around magic, the fight between good and evil, and the growth of the characters. Inheriting concubines is a concept that doesn't belong to this world. Moreover, these platforms usually have strict content guidelines to ensure that the fan works are in line with the general tone and values of the original work, and this kind of out - of - place concept would not pass those guidelines.
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Chapter 231, "Investigating Yang Lu by Day—Whose Side Are We On?", is the clearest early answer because it turns Yangyuan Peak's situation into a concrete plot event. It opens with Except for Long Mountain, there are no more tall mountains on the... and closes on This is considered Yang Lu's only strength..
Chapter 317, "Wrapping Up the Migration, Great Xia's Flourishing Scene, Star-picking Hall (Part 4)", is the clearest early answer because it turns Xiao Ning's situation into a concrete plot event. It opens with Madam, Seniors, I'm truly sorry, the young one wasn't meant to... and closes on Han Yue greets the two Ministers' Wives!" "Greet the Minister's....
Chapter 270, "The Terrifying Red Carp and the Precious Flora (2)", is the clearest early answer because it turns Xing River's situation into a concrete plot event. Early on, The two voices echoed one after the other in an instant!. By the end, Of course, considering the size and strength of that fierce beast and....
Chapter 315, "New Policies for Long Mountain, Cold Apple Tree and the Silver Mine (Part 2)", is the clearest early answer because it turns Cloud Dragon Army's situation into a concrete plot event. The chapter turns that into something concrete by moving from In April, the march begins from Xia City to Longyou; in May, the... to A great victory inevitably comes with great loss..
Chapter 241, "Message, Rebellion, and the Strange Wu Xiong", is the clearest early answer because it turns Yuan Cheng's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Those people who ran away from Yangyuan Peak definitely have issues."... and follows through with Of course, as Director of the Garrison Department, one of the....
Chapter 221, "A Good Show, Threats, and Long Mountain's Intentions", is the clearest early answer because it turns Ma Yong's situation into a concrete plot event. The chapter turns that into something concrete by moving from What good show Li Xuanling spoke of, Xia Hong wasn't sure, but given... to Didn't see Hong Yu in the back?" "He's not in the front either."....
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