We have ZR who came to the hospital his father help build almost 20 years ago, to work & also investigate what happened during those 17 years…there he meets different patients & diseases. He looks cold,distant & blunt due to the past but slowly opens up to another smart man called Su Yun. SY also has his own baggage, but slowly changes while having ZR around.
Note that, even tho it’s from the novel, it doesn't follow everything accurately, then again which drama has EVER followed a novel to the T??. So don’t expect some system or whatever & yes they’ll blur the surgery( due to censorship I guess) so keep that in mind too.
Zheng REN & Su Yun work together, become very close to the extend that, ZR wants SY by his side all the time. Whenever SY is sad, ZR gets emotional too…mind you, he NEVER cares nor shows emotions to anyone except Su Yun. They are basically best friends/soulmates you could feel the chemistry oozing ?. There may be disagreements but they quickly solve it as adults. Mostly when there are disagreements the two leads start bickering & become negative towards each other but NOPE! Not ZR & SY.
So give it a watch & you won’t regret it.