Diabolik Lovers : Christa's Twins
What if Christa was the same after the things Karlheinz did to her , What if instead of having Subaru she had twins and Yui was the youngest sibling of the family ! Yui is timid and sad most of the time , and Subaru is angry and overprotective of his sister ! Yui doesn't trust Cordelia's triplets , but she only trusts...