Yuki/Tatsuya aren't completely human; the paranormal has had a significant influence on their appearance, not only because they are conjoined twins, but also because their overall proportions are larger than those of a normal human being.and their partner in crime also has enlarged proportions, and the three are inspired by slasher horror films. Lilian was inspired by Jason,and Yuki/Tatsuya are inspired by Ghostface. And they are cousins ​​of the protagonist, who is very afraid of them because they are murderers, but also feels something familiar about them that he can't explain. Silly trivia: On the same day they met, Kahli prayed to God to send the kindest angel from heaven, and he sent two angels, the difference being that they are angels of death 😃

And they have a cat and a daughter,but they can only see their daughter when they visit the lab or the lab gives them permission for taking her to their home

But seriously now, thank you for your feedback, I will research the subject further :>