She wasn't an idiot. Of course she knew her behavior today had been very abnormal. In fact, several people had come over during the return trip to ask whether something had happened to her, but... how could Asuna possibly answer that?!
"Ugh..."
Thinking of this, Asuna's face immediately flushed red. Then she closed her eyes, pulled the blanket over, and covered her head. She now realized that taking those books from Eriri in the first place had truly been a terrible mistake!
At first, Asuna had really only been curious. Just as Fang Zheng had guessed, the books she had seen at Eriri's place had thoroughly shattered her entire worldview. Before that, as a well-bred young lady, her knowledge of such matters had been limited to biology textbooks or artistic works such as Greek-style sculptures and paintings.
The contrast had been far too great, to the point that Asuna felt her worldview had completely fallen apart and could no longer be put back together!
What was even worse was that the books had an actual plot!
Eriri had drawn three books in total: Hypnosis Arc, Degradation Arc, and Slave Arc.
The first, Hypnosis Arc, was the one she had previously shown Fang Zheng. It told the story of Fang Zheng and Asuna going on an adventure, finding the Hypnosis Glasses in a Treasure Chest, then Fang Zheng putting them on and hypnotizing Asuna before doing whatever he pleased with her.
The following Degradation Arc was the book Black Cat had been reading later on. It told the story of what happened after Fang Zheng used the Hypnosis Glasses to make Asuna his.
As for the final Slave Arc, it naturally told of Fang Zheng successfully turning Asuna into his sex slave, even after the Hypnosis Glasses had lost their effect...