Please dev, if you make Erica return and continued her relationship with MC , keep her virginity. Don't add NTR indirectly like your other games by saying that MC and main girl are not in a relationship yet so she can lost virgin to anyone. When I saw how you made Erica leave without giving MC her virginity and put her on the side girl list, I immediately thought that you wanted Erica to return and lose her virginity. Then defend by saying that MC and her have already split so they don't count as NTR like your other game. If not, make her never come back. Erica is clearly more special to the main character than Risa in other games. If you do, it will definitely cause a bigger debate than Risa's..
If you want to make NTR game, just do it or let it be an option.
I'm not against NTR ( because I also play that type of game) but I hate when devs try to lie about their tags and notes to players by indirectly circumventing the rules.