The settings in BL vampire novels are usually quite dark and gothic. Think of old castles or shadowy cities. This setting helps to create an atmosphere that is both spooky and romantic for the BL relationship to unfold. For example, in many such novels, the vampire's lair becomes a place of both fear and a sort of strange intimacy for the lovers.
One common theme is the power imbalance. Since vampires are often depicted as more powerful than humans, in a BL context, this can create an interesting dynamic between the two male characters. Another theme is the struggle with identity. The vampire character may be struggling with his vampiric nature while also dealing with his feelings for the other male character.
I'm not sure specifically what the 'glmm sad story' is without more context. It could be a sad story related to a Generalized Linear Mixed Model (GLMM) in a research or academic context perhaps. Maybe it's about some difficulties or failures in applying GLMM in a study.
Sure. 'Captive Prince' is a great one. It has elements of a vampire - like world and also has a strong BL relationship. The story is full of political intrigue and a deep emotional bond between the main characters.
It's not uncommon for such a twist in BL manga. The boy next door could totally be a vampire if the story is set up that way to add excitement and mystery.
Once upon a time in Gacha Life, there was a girl named Lily. She met a boy named Tom at a virtual party. They immediately felt a connection. They started going on virtual dates, like picnics by the digital lake. But then, a jealous character named Lucy tried to break them up. However, their love was strong and they overcame all the obstacles and lived happily ever after in their Gacha Life world.
One common theme is forbidden love. Since vampires and werewolves are often portrayed as natural enemies, their relationship goes against the norms of their societies. For example, in many novels, they have to keep their love a secret from their clans.
One popular vampire BL novel is 'Captive Prince' which has elements of a vampire - like world and a complex relationship between the main characters. Another is 'Aristotle and Dante Discover the Secrets of the Universe' which has some dark and mysterious undertones that can be associated with vampires in a way, and of course, it has a beautiful BL relationship.
One common theme is unrequited love. In GLMM, one character may love another deeply, but the feelings are not reciprocated. This can lead to a great deal of sadness and longing.
One GLMM sad love story could be about two individuals from different social classes in a fictional world. They fall in love but society's rules and expectations keep them apart. For example, one might be a noble and the other a commoner. The noble is pressured to marry within their class for political reasons, and despite their deep love, they are forced to separate, leaving both heartbroken.