Responses
And it would probably explain why a lot of bad luck goes to kihoon because he's the one who altered it
I considered that as well, but then I recalled that he experienced misfortune even prior to altering fate so perhaps the cause lies elsewhere. （/TДT)/
Since we're talking about the misfortune i actually thought Yeon was somehow easing Kihoon’s jinx, since it seemed like nothing bad ever happened to him whenever they were together.
Might be wrong tho ╮(￣▽￣)╭
Maybe just maybe Lee Yeon was originally destined to be with the girl, until Kihoon unknowingly altered that fate using the rock. He didn’t realize it would actually work, but now he's the one tied to Yeon (and that maybe is their real Destiny path).
That could explain why the red thread with the girl is fading, while the one between Yeon and Kihoon remains strong.