Zhu Yilong, the actor who plays Shen Wei, is very pretty when he suffers. Which he does rather a lot. <3<3<3

Here are some links to get you started:

A Guardian Starter Pack by unrelaxing

Non-Spoilery Guardian Starter Kit by asya_ana

So You Started Watching Guardian: A Non-Spoilery Language Primer by asya_ana

It's worth watching with the good subtitles, made by solo, for which you need VLC player.