Undead Empress Unintentionally Tamed The Twin Goddesses

Haven't quite figured out the synopsis yet.. but it's Yuri there is nothing else to know.. There will be a harem.. There won't be any futa, just pure sweet harem.. it's a dark theme, if you can't handle such things, then I have to say, I really don't know how you have survived this far in this dark and messed up world.. Read and see if you like (leave a comment if you think there is somewhere I can improve)