.... writing "Shen Wei" seemed to flow very well but writing "Zhao Yunlan" constantly was getting tedious, both to write and to read.
Only because you're not used to the way Chinese names are used yet. Take it from me - I started out thinking exactly the above. But it's shifted to the point where I literally went back and edited 50k of WIP I started posting a couple of months ago because now it feels so wrong to use "Zhao" by itself that I couldn't stand it anymore. I've also used "Zhao Yunlan" all the way through in explicit fic where he's the POV character and nobody has complained, because that's what people on this fandom have come to expect. (I have also used "Yunlan" only for his POV in a one-shot.)
Again: using full name for the POV character feels clunky - but only until you get used to it. Which native speakers already are, and readers in this fandom tend to become. I would seriously advice against using one name only, because I did, and that didn't work out for me in the end despite having very good and logical reasons for it.
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Only because you're not used to the way Chinese names are used yet. Take it from me - I started out thinking exactly the above. But it's shifted to the point where I literally went back and edited 50k of WIP I started posting a couple of months ago because now it feels so wrong to use "Zhao" by itself that I couldn't stand it anymore. I've also used "Zhao Yunlan" all the way through in explicit fic where he's the POV character and nobody has complained, because that's what people on this fandom have come to expect. (I have also used "Yunlan" only for his POV in a one-shot.)
Again: using full name for the POV character feels clunky - but only until you get used to it. Which native speakers already are, and readers in this fandom tend to become. I would seriously advice against using one name only, because I did, and that didn't work out for me in the end despite having very good and logical reasons for it.