I posted about this already in "I'm Looking For", but nobody could help me. I felt I could have a better chance here.

I read this a LONG time ago, so I don't remember much about it. I apologize in advance 😅

I know the MC had a dog that passed away, and so he picked up a white cat that reminded him of his white dog. But, I think the cat was actually tiger?? And he turns into a human man. But, I think there was a twist where the dog wasn't actually a dog, it was the cat?? And MC's memories had been altered?

To the best of my knowledge, the tiger's human form is tan, and I'm pretty sure MC names him Beom. The MC also has a friend, from school, I think, that starts to get worried about him as the story goes on. If this rings any bells for anyone, I'd really appreciate it! I really want to find this one, it's driving me crazy!