Hello! The past few days I've been looking for a manga/manhwa/manhua I've read a few years ago. Can't remember which country it exactly comes from.
I also only remember little parts of the story and I'm not very sure about some parts of it. I think there was a girl that got involved with a group of vampires, I think it was 3 men? But they didn't bite people, they kinda sent out insects at night that went looking for food for them. Iirc the male lead had black hair? There was also a blonde one with glasses and if I'mr right,

he went on to die later on in the story . I also think the female lead reminded the male lead of a past love he had, but might be mixing this up with another manga. Sadly I can't really remember more than this.

Kuro Bara Alice ?

yes I think thats it! Thank you so much!