Shiva Mikaido

Killed by Wakasa, yet appears in Misumi's body. Due to a brain core operation, he is able to live in someone else's body. It is shown in the story that he has a strong interest for Tsukasa, because she looks exactly like her mother that he had feelings for. Even though he's biologically Tsukasa's uncle, there is a time where he marks her neck. [Source: Wikipedia]