@empressnyannyanau , There's a good reason why she's the way she is. It's probably gonna be revealed in a few chapters if the manga keeps this rate. And yeah, the manga isn't really good at explaining what's going on in comparison with the novel.
@dummyaccount12345
The age of consent in japan is 18 to 20 years old, depending on the prefecture, the 13 year thing if i remember correctly is being able to be judged by law and sent to court.