Help me

Hey, I’m looking for some doujinshi/yaoi. I remember that the seme has black hair and I think that he's a doctor or something like that, and that his name start with a H.
The uke is more smaller than the seme and he is in high school.
I remember that :
-the seme took the uke in his car, and they went to the beach (And sex in the car ??? Maybe I’m not sure)
They had sex with some sex toy(s?) in a hotel room

Thanks you