Uke alway able to see ghost, that how Seme know Uke cause he saw him on the TV. So he alway been violated by ghost. But I think since Seme forcefully tie the fate string together, Seme power to see ghost transfer to Uke which make Uke see ghost even more. Cause if you see in flashback, Seme was talking to a ghost. Also since asia have like Yin and Yang. I think the uncle concern bout Seme gonna get himself unalive cause Yang energy is positive energy and I think Uke have barely any Yang energy so that why ghost post his body even more. Also having a little Yang energy meant that he should have die. And them fking a lot meaning that Seme transfer Yang energy to Uke which could make Seme easier to get unalive.
It just my theory though.
So it was cuz of seme who forcefully tie the uke’s fate to him and now uke is facing bad luck and being violated by ghosts ?