This is based on a novel with the same name as the manhua. A few lines are definitely not enough to explain the plot. But without a doubt Xie Lian (the protagonist) is a freaking badass.
It has another story and this is a part 2 of that main story. The uke is definitely badass but at the same time shy and cute. The story is shounen ai so while there isn't much of intamidatig scenes there is a lot of cuteness and fluff.
This is a novel by the same auther as heaven "official's blessings". The story is really long and the manhua hasn't even couverd half of it yet. So it's better to watch the donghua(anime) To get a better grasp of the badassbenss of Wei Wuxian.
It's not yet finished and in the novel they are a switch couple but both of them are one hell of badasses. Ik junior may not look like it at first but he learns how to fight in the future.
Heaven Official's Blessing