This show is by far my favorite drama I have ever watched. The acting is amazing, and the storyline is something unique that you rarely see in BLs. It perfectly balances the romance with the action scenes, and every scene serves a purpose. While there are some dark and serious topics, the show does a great job sprinkling comedic scenes that are actually funny, not cringy like some other shows.

Both couples are equally captivating. Tang Yi and Zhao Fei are interesting to watch as they grow from enemies to lovers. It's also interesting watching their other storyline, about Tang Yi's past and his father, unfold as they find out more about it together.
Jack and Zhao Zi are mode comedic in my opinion, and really adorable. They are another unlikely couple, but their chemistry is really amazing. There is really never a dull moment with this couple. Plus, for both couples, the kiss scenes are really well done. ;)

I've already watched this series twice, and I'm beginning my third watch through now. It's a show that you can rewatch many times and still appreciate the work that went into such a complex and heartwarming story. I definitely recommend this show, if you like BLs then this show is a must watch.