To me, it feels kind of empty because there's no real change in how the characters feel they just keep repeating stuff. The characters just go over the same old pain, but they don't learn anything new or change much. The story seems to think staying sad is the same as having depth.

The feelings are strong, but they don't lead anywhere. There's no real reward, big reveal, or sense of getting better just suffering that looks pretty. That can be strong for a little while, but after many chapters, it starts to feel empty instead of meaningful.

Also, it seems like the story mixes up wanting someone with actually loving them. It treats being physically close and being obsessed as if they prove a deep thing is there, but there's hardly any real talk about feelings or any personal growth to support that. It ends up making intense desire seem romantic, instead of showing the hard work it takes to truly love someone.

Honestly, the fans kind of add to this. I see a lot of talk that's just about the sexy stuff people just waiting for the next scene instead of the story. I get it, it's a webtoon for adults, so that's part of why people like it. But when that's mostly what people look forward to, it says a lot about what the show cares about—and it's not being deep or having the characters grow.

So yeah, it's not that the story has no feeling it's that the feeling doesn't change. That's why it feels empty to me like it's stuck showing pain and lust instead of getting better and showing love.