A 'hazelnut latte visual novel' could potentially revolve around the daily life of a character who loves hazelnut lattes. Maybe it shows their experiences in different situations while enjoying this coffee drink. It could also be that the hazelnut latte serves as a symbol in the story, representing something like comfort, a shared passion among characters, or a memory trigger. For example, two friends who always meet over a hazelnut latte and the visual novel could be about their relationship development over time.
I'm not sure specifically if there are vampire novels that mention all of Karen, latte, and wine together. There are a vast number of vampire novels out there with various elements. Some might mention a character named Karen in a context related to a luxurious lifestyle where latte and wine could potentially be part of the scene, but it would be quite rare to find one that combines all three in a very specific way. You could try searching through some popular vampire novel databases or asking in vampire - novel - fan forums.
It could be the combination of the two characters, Arwin and Latte. Maybe their personalities interact in a really interesting way in the fanfic. For example, if Arwin is a brooding type and Latte is a bubbly character, their relationship development can be very engaging.
Since we don't really know the exact plot of this 'hazelnut latte visual novel', the main characters could be diverse. It might be a young barista who specializes in making hazelnut lattes and the regular customers who come for this drink. Or it could be a group of friends who bond over their shared love for hazelnut lattes, and they could all be main characters, each with their own storylines and personalities that interact with the concept of the hazelnut latte in different ways.
I'm not aware of any specific vampire novels that would feature Karen, latte, and wine all at once. But if you think about it, a vampire novel set in a modern, upscale urban environment could potentially have these elements. For instance, a story where Karen is a socialite who gets involved with the vampire underworld. She might be seen sipping latte in a trendy café during the day and later be at a vampire - hosted party where wine is served. However, this is just a creative idea and not based on an existing known novel.
Well, I heard about a latte love story. A girl was having a bad day and went to a coffee place. She ordered a latte. A guy sitting nearby noticed her sad face. He offered to buy her another latte. They began to talk about lattes, how different places make them differently. As they talked more, they realized they liked each other. And it all started with that latte.
The most romantic part could be when they first share a latte together. Just the simple act of sipping the same drink and looking into each other's eyes can be really sweet.
Well, it could be that the author likes the combination of a lukewarm latte and coconut milk and decided to incorporate it into a fanfiction. Maybe it's a unique setting or a symbol within the story.