It‘s obvious why this manhwa is so popular right now. Good artwork. That‘s all it apparently takes nowadays.
The story is way too straightforward. There are super vampires and the MC duo is killing them. That‘s it. No layers, no secrets, no plot twists. Just plain enemy after enemy, without pause. Nothing gets a build up, every storyline starts and immediately rushes to the climax, ends and next chapter the next enemy is already here.
Not to mention the countless plot holes, ooh, all those painfully stupid plot holes.
The characters are shallow and boring. They have no depth, their goals are bland at best. i wAnT tO kiLl aLl vAmpIrEs. Cool. The male MC is a typical pretty face with no substance and the latest „plot twist“ (ch. 30) can be seen from a mile away. The only character with potential gets killed after a few chapters and of course in the most cliche and cheesy way possible.
The art is good but the author doesn‘t know how to write an engaging story. Either she is too incompetent for that or just thinks we readers are stupid and can be satisfied with pretty art.
......and unfortunately, that seems to be true, judging from the comments here and on webtoon.com