Thanks I appreciate any kind of genuine criticisms, I apologize for the confusion with the relationship labeling. I will do my best to address this in the next update.
edit- I use Daz 3d studio
edit2- The M.C was kidnapped at the same time the twins were born, so they are both 18. Saeko is only year younger then the M.C. I assure you all characters will never be underage (All of the current female character are all 18 or above), and if any do pop up I will give notice they are underage and they will not have any adult content.