Heroes who are biologically in the same family as villains. They can be they a parents, siblings, children, aunt/uncles, cousins, nieces/nephews, distant family members or clones of villains; Adoptive and foster relatives can also count as well. A popular element in fiction is to have the protagonist be related to a villain to add more drama. This was most likely popularized by the relationship between Luke Skywalker and Darth Vader.

This is the updated version of Heroes who are biologically related to the villain. In some cases, a villain's relative may qualify as Pure Good if they meet all criteria, such as having empty (e.g. affect and/or remorse) for the villain. In addition to in many cases, trying to convince them to redeem themselves. Even though they are Pure Evil. SCP-999 is a perfect example of a Pure Good hero related to villains.