New vampire manga often has more diverse character designs. For example, they may include vampires with different powers and appearances. In traditional vampire manga, the vampires usually follow more of the classic Dracula - like features. Also, new vampire manga might explore different themes like modern relationships between vampires and humans in a more in - depth way.
Typically, 'manga de science fiction' often features advanced technology that doesn't exist in our current world. For example, things like flying cars, giant robots, or mind - control devices. It also tends to explore different social structures. Maybe in a future where the Earth is overpopulated, how do people live? And there are often strange new species or mutations. Like in some manga, there are human - like creatures with special powers due to genetic experiments.
I'm not too familiar with 'de shisen manga' to make a direct comparison. But usually, such comparisons depend on factors like art style, storylines, and character development.
I'm not sure specifically as I haven't read it. But generally, a 'light novel' about vampires might be about vampire characters, their lives, perhaps their relationships with humans, and their feasts which could be related to blood - drinking or other vampire - related activities.
To seduce a vampire in manga, you could try being mysterious and alluring. Maybe have a unique style or personality that catches their attention. Also, showing bravery in the face of danger could make you stand out to them.