The White Moonlight in the Golden House [Transmigrated into a Book]

I'm a poor soul who transmigrated into a book after a single nap. Even worse, I ended up as the male lead's black moonlight in an upgrade-style power fantasy—the kind of cannon fodder who gets ground to bone and ash in the end. After I arrived, I realized, oh, this black moonlight isn't just morally black—even the gender's a bit off. To keep my little life intact, I stayed far away from the male lead while diligently playing the role of an aloof goddess. But I'm a chatterbox—who knows how much suffering that is inside. Once, I stepped up to help a female classmate by beating up some thugs. I'm pretty good at fighting, but to keep up the crossdressing act, I barely dared to eat, terrified ...