If you enjoyed "Eternal Love" you will want to know that the book it is based on is not an original. It's the work of a plagiarist.

The name of the plagiarist is TangQi GongZi.

TangQi published her novel ~10 years ago. Her novel became the basis for the popular Chinese drama, "Eternal Love".

The original novel, Peach Blossom Debt [Tao Hua Zhai - ISBN-10: 7519011232  & ISBN-13: 978-7519011239], was written by DaFeng GuaGuo.
So, what TangQi did was steal Da Feng's work and publish it as her own. Tang Qi's wording, the story she shamelessly sells as her own... it's the work of a most skilled plagiarist.

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The original novel is BL-themed. Needless to say, BL-themed stuff is low-profile and pretty much illegal (read. underground) in China. Knowing that DaFeng would have a hard time fighting the establishment, Tang Qi took DaFeng's novel and rewrote it. She replaced homosexual characters with heterosexual characters to cater to mainstream audience... added a little spice here and there and voila! TangQi's very own novel was born.

There's more to the story...
Tang Qi was so bold, she even made fake accounts to talk about (read. advertize) her novels on Da Feng's pages, she posted shit in the comment sections under Da Feng's novels... girl basically went gaga! 
When people found out what TangQi was doing, things got ugly and our anti-hero, Tang Qi, decided to go full scale war. She created an acc pretending to be Da Feng...blah blah blah... long story short, her actions harmed Da Feng's reputation.

Today, Tang Qi is a well-known "writer" in Mainland China.
You me, we know the truth now! She's a thief, who feeds and lives off of other people's creativity... their time and effort.

If you decide to read the book/watch "Eternal Love", please keep the above in mind and give proper credits to DaFeng, the real mind behind the story.
And if you want to know more, here you go:
Hamster428's story

wow she just make money from other;s people sweat...never thought she will copy more than a novel... 

@Panda:

Oh no my apologies! I thought you were talking about Eternal Love! I'm less informed in the plagiarism scandal surrounding Weiyoung though. Did its novel plagiarised as well?

@Panda

Ah I see. Thanks for sharing. Since I didn't watch Weiyoung and have no intentions to, so I didn't really read up on that. Even though I did vaguely heard about the allegations before. It's quite funny I haven't seen as much backlash on Weiyoung as I have seen for San Sheng on Weibo. I guess it's also because how justice hasn't been, and is unlikely to be, served for the latter since it plagiarised a BL novel.

It's so sad to see that she's plagiarizing people, getting the money AND getting away with it. I just feel so sad that all of the hard work of these authors are not recognized and instead this Tang Qi gets all the fame and glory =(

@Kristana 
The sources I got the information from are all Chinese sites.

The ones on painting and songs: here
This one's in Chinese, but if you scroll through you can see some pictorial comparisons of what parts of certain paintings were used in the promotional posters for the drama.
But to be mindful, they're only allegations so far. Some may or may not be too stretching things too far. Like people pointing out that parts of the theme song sounding familiar to other songs.

Tbh there's all this craze and frenzy I saw in some parts of the Chinese online community where people are fervently condemning the plagiarism act of this novel particularly with the popularity of the drama right now.
So it's not unexpected that people are trying to find more concrete evidence to show that the drama is also erroneous in some ways, since a lot of people are still angry that the plagiarism matter of the novel have yet been brought to justice.

But anyway, something which is confirmed is that the drama production team is involved in a copyright legal issue for one of the soundtracks they used in the drama. I read that the soundtrack in question is one of those traditional opera performance soundtracks. You can see some examples of it and how it was used in the drama here. The drama team have apologised for using the soundtrack without permission or whatsoever (but only after the airing of the drama. Okay. :/)

Either way, there's very little way to argue the novel out of plagiarism accusation, and the fact that the drama is an adaptation, makes it impossible for it to 100% divorce from its evil roots. :)

My honest reaction, thorns and all: I hate that I am essentially supporting plagiarism because all the evidence shows that this author is guilty.  But all I care about is the story, which I really love.  If that makes me awful, that's okay. I am grateful to the original writer who wrote the novel because it made eternal love a reality, a story, though copied, that I love.   But I honestly only care about the story.  The person who suffers most is the original writer, and I think the most unfortunate thing is that she can't challenge the system because of the taboo nature of her work in her country.  People will always do awful things online to promote their work, but the original author can't even challenge the system.  Very unfair and I hope she gets justice one day.  But I will never in a million years say that I will stop watching/reading eternal love because I really like it.  

i am certain everyone is tired of me saying this....but i sincerely hope this doesn't impact the possibility of the pillow book being made (I am absolutely shameless.  maybe that is why i feel such a strong affinity to FJ)