Can anybody tell me what's this yaoi manga is? I remember a little details about the story...

Can anybody tell me what's this yaoi manga is?
I remember a little details about the story it was a weird and maybe horrifying idk and there's a lot of this stories in one manga...they always open there mouths and there was this lovers who the seme accidentally killed his lover by falling in spikes on the floor and the seme ate the body of his lover and left a skull in to his store for decoration...that's all I could remember