That's why it's so important to save the moment when Tilly comes to you at night: there are two options for responding, pretend to be asleep or answer her. Then comes the choice that the developer talked about, accept Tilly, then you'll get a scene with a condom and then you can fuck her during the day, or a mutually exclusive choice that doesn't give anything yet (the developer mentioned Tilly's mom, but you won't get any scenes.) Therefore, as fans of the harem, I recommend: with NTR turned off, save before the option to pretend to be asleep and wait for updates about mommy, and also have a second save where Tilly fucks during the day. Do not forget that if you took Tilly's virginity, but then turn on NTR to see what will happen in the club differently, you may get an error. And if you rejected Tilly, then the long-standing dream of one of those who left a comment that Tilly would not exist came true - and indeed, it says "Tilly is a garage", but you go in and she is not there. Funny mistake.