It's so Bloody, Who Can Change the Protagonist for Me!

[Women disguise themselves as men + wear books + system + campus + long-planned + substitute literature] [Abstinence-free handsome boy × a happy missionary] Ye Wanxing, a conscientious person who worked for the God, entered the book with a system and disguised himself as a man in order to protect the beautiful love between the male and female protagonists. As a result, the male protagonist was allowed to stay at her house before the show even started, and his identity as a girl was exposed. This, how can we play this? She was shocked, but fortunately the system told her that she just had to ensure that the male protagonist did not die. But why does the male protagonist always hang around him? Did they secretly change the protagonist for her? Later on, in order to get rid of the master god's control, the female protagonist faked her death and was dragged by the male protagonist to be a substitute (the male protagonist had already recognized her). And our star baby said: This is simply bloody! Who changed the protagonist for me!