I know some people gave different spoilers eventho they said they read the novel.
If you want to read Continuing Story 1, 3, and 4, you can.
Despite knowing that Jennette is a threat, she still treats Jennette as a friend and is in good terms with her.
When Anthy first meets Claude, the dining table is large with a huge separation.
In the novel, it is only mentioned as a deceased, but in the cartoon, it is revived according to its name.
At least they should know more, more than us as International readers? Is Athy older than Jennette? This is why it comes as such a shock to Atty when he appears after Claude is incapacitated seemingly serving Claude's 'dead' brother.