They are two special and top-notch character

Description:

Dave and Davina is a two sibling who have family and live in house hotel-like, yet they have same thought and personality as if both of they was a same person. They like peaceful, nature and justice path. If someone or something disturbs or challenge them, they will immediately enter into hardcore mode if one of them causes trouble, acts annoying or etc towards them. They are also the one group of characters has own stories, history, relationships, and appear very frequently in some universes