Karolina and Katerina

Friendly and family relationship between two former vampire sisters, Karolina Klement and Katerina Dumont.

In the beginning, Karolina didn't know Katerina is actually her half-sister. Later, when Katerina is already turned into a vampire and is Karolina's blood sister, it is revealed they are biological half-sisters. From then on, Karolina and Katerina share a loving and caring bond for each other.