Thanks dude,and I have some more questions：Dahlia's hint always appears "I should bring the girls over to question：Dahlia's sex shop as a class activity".I have tried many times，let all girls go to glory hole,but Dahlia's hint still exists.I don't know how to finish this hint.In addition,the last one in class list is"???"',and "Hihi,it's a secret ！kiyahahaha!whoever might be the key to this?"Please tell me how to finish this,thank you a lot！