Searching for yaoi.. a very old one.

I don’t quite remember about the plot, but
1. Seme is a very famous person unlike uke.
2. Uke is a shape-shifter black cat. He can also transform to human.
3. Last conflict (if am not mistaken) was about engagement/marriage between them which the uke chase after seme in foreign country to ask for forgiveness for rejecting him (i think so)

Does anyone know about this story? I try to search for it but fail miserably ╥﹏╥ pls help me to find. Thank you!!(づ￣ ³￣)づ