A supernatural story about Anna and Mitsuru with the biters (vampire)/contract concept. Anna has been drawn to Mitsuru's (a nectar) blood ever since they were kids. He's been protecting Mitsuru in his own way since technically Mitsuru has turned into their house's precious nectar. Even though there are conflicts going on inside Anna's head, Mitsuru has a lot of personality so they end up being together.
Story is short but would've been better if it had more chapters!
Smoky Nectar