seriously?

I think it's because of how they treat Yeon at first in the present timeline. Though Yayul killed Yeon in the past, the Yayul in the present chapters is like a golden retriever and treats Yeon really well. He's cute, and even though he doesn't talk much, the story shows that he likes her based on his actions.

While in Ryucheong's case, he's like a tsundere, like a typical bad boy ML who wants to act or look cool in front of someone he likes. He acts as if he doesn't care, but actually does. Like, "It’s not like I wanted to help. Just figured you’d mess it up less if someone was around." That type of guy.

And who’d want a guy like that for our Yeon?

I can’t speak for others, but as someone who liked Yayul for Yeon at first, that’s my reason why. I find Ryucheong’s actions toward Yeon annoying, and I think that his actions are unbecoming of a male lead, in my opinion.

But then I realized that they’re kids and that is how kids usually act. I expected them to act mature toward their adoration for Yeon when, in reality, they’re just kids.

Though I only started to realize this when I found out who the ML is and began to gaslight myself into looking for reasons why Ryucheong is better suited as the ML.

Aside from that, not all readers have read the novel, and most of our opinions are based on how they act in the recent chapters. It’s not like we know how he’ll act in the future. And even if you say he might try to kill Yeon again, we didn't know, because, again, we haven’t read the novel. It’s not like we’d assume he’d stay the same person he was in the past. Of course, we expect him to become a better person since he’s in a better environment in the present.But yeah, that’s also another reason why Ryucheong should be the ML then. Thanks for the spoiler and giving me more reason to like ryucheong more.