First encounter in my HC is he comes to Nur really clingy even hugging her. But because Nur not know him, she slap Mikhael and call him a pervert lol
But after that they meet in Angel Halo and clear the misunderstanding
And a bit about Rhapael in my mind. He sounds like a disciplinary. I can imagine everyone scared of him and sometimes he feels lonely. That's why he love animal because they not scared of him
I'm still not sure with his hair color but we will meet in next lesson so yeah