Trying to remember this bl manhwa thru it's special eps / side stories

Guys can u help me find this one bl manhwa? I remember that there were these special episodes where the mc and ml met but the ml was a vampire and the Mc was like a small human? portrayed kinda like a bear? The ep was written simply and w not much color but it was very touching (i remember other comments saying so as well) I can't remember if they were special eps or side stories but the vamp ml doesn't drink blood I believe and the room he lives in is super bleak with only a coffin and Mc helps liven things up but one day mc bleeds and gets driven out and there's also a christmas tree involved somewhere in the plot and ppl are hunting down ml. Sorry if this is a bad explanation! I'll keep on trying to remember more ┗( T﹏T )┛thank u!!