BL manga???!!

Hi, looking for manga I read years ago, so idk if Im able to say a lot about it ...
It's some BL older manga. Shounen ai, def not Yaoi. It has kinda junjou Romantica art style I think. If I remember it right, it had something like "cafe" in name. Mc had black hair (?) and ml was really like puppy and worked in library.
And there was scene when they were mad at each other and mc started running away from ml and he fell on the ground and bruised his chin and ml was sad about it.
There wasn't any drama or anything and it had around 5 chapters I think...
That's all I can make up guys, please help :((( it was my first BL manga